Spectrum Math Grade 1 Chapters 1-2 Mid-Test Answer Key

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Spectrum Math Grade 1 Chapters 1-2 Mid-Test Answers Key

Add or subtract.

1.
Answer:

Explanation:
Addition:
7 plus 3 equals 10.
3 plus 7 equals 10.
Subtraction:
10 minus 3 equals 7.
10 minus 7 equals 3.

2.
Answer:

Explanation:
Addition:
2 plus 7 equals 9.
7 plus 2 equals 9.
Subtraction:
9 minus 2 equals 7.
9 minus 7 equals 2
.

3.
Answer:

Explanation:
Addition:
4 plus 2 equals 6.
2 plus 4 equals 6.
Subtraction:
6 minus 2 equals 4.
6 minus 4 equals 2
.

4.
Answer:

Explanation:
Addition:
5 plus 2 equals 7.
2 plus 5 equals 7.
Subtraction:
7 minus 2 equals 5.
7 minus 5 equals 2.

Complete.

5.
___ tens ___ ones = ____
Answer:

=> 4 tens 6 ones = 46.

Explanation:
Number of tens = (10 × 4) = 40.
Number of ones = 6.
=> 40 tens 6ones = (4 × 10) + (6 × 1)
=> 40 + 6
=> 46.

6.
___ tens ___ ones = ____
Answer:

=> 5 tens 5 ones = 55.

Explanation:
Number of tens =  (10 × 5) = 50.
Number of ones = (5 × 1) = 5.
=> 5 tens 5 ones = (5 × 10) + (5 × 1)
=> 50 + 5
=> 55.

7.
___ tens ___ ones = ____
Answer:

=4 tens  0 ones = 40.

Explanation:
Number of tens =  (10 × 4) = 40.
Number of ones = 0.
=> 4 tens  0 ones = (4 × 10) + (0 × 1)
=> 40 + 0
=> 40.

8.
___ tens ___ ones = ____
Answer:

=> 9 tens  7 ones = 97.

Explanation:
Number of tens =  (9 × 10) = 90.
Number of ones = (7 × 1) = 7.
=> 9 tens  7 ones = (9 × 10) + (7 × 1)
=> 90 + 7
=> 97.

Write >, <, or = to make the following statements true.

9. 66 49
Answer:
66 > 49.

Explanation:
66 -Big number.
49 – Small number.
=> 66 is greater than 49.

10. 63 53
Answer:
63 > 53.

Explanation:
63 -Big number.
53 – Small number.
=> 63 is greater than 53.

11. 12 25
Answer:
12 < 25.

Explanation:
12 – Small number.
25 – Big number.
=> 12 is lesser than 25.

12. 92 82
Answer:
92 > 82.

Explanation:
92 -Big number.
82 – Small number.
=> 92 is greater than 82.

13. 28 58
Answer:
28 < 58.

Explanation:
28 – Small number.
58 – Big number.
=> 28 is lesser than 58.

14. 58 58
Answer:
58 = 58.

Explanation:
58 – Same number.
58 – Same number.
=> 58 is equals 58.

15. 42 50
Answer:
42 < 50.

Explanation:
42 – Small number.
50 – Big number.
=> 42 is lesser than 50.

16. 68 54
Answer:
68 > 54.

Explanation:
68 -Big number.
54 – Small number.
=> 68 is greater than 54.

17. 10 91
Answer:
10 < 91.

Explanation:
10 – Small number.
91 – Big number.
=> 10 is lesser than 91.

18. 11 31
Answer:
11 < 31.

Explanation:
11 – Small number.
31 – Big number.
=> 11 is lesser than 31.

19. 6 68
Answer:
6 < 68.

Explanation:
6 – Small number.
68 – Big number.
=> 6 is lesser than 68.

20. 87 89
Answer:
87 < 89.

Explanation:
87 – Small number.
89 – Big number.
=> 87 is lesser than 89.

21. 24 54
Answer:
24 < 54.

Explanation:
24 – Small number.
54 – Big number.
=> 24 is lesser than 54.

22. 23 15
Answer:
23 > 15.

Explanation:
23 -Big number.
15 – Small number.
=> 23 is greater than 15.

23. 98 94
Answer:
98 > 94.

Explanation:
98 -Big number.
94 – Small number.
=> 98 is greater than 94.

Count forward. Write the missing numbers.

24. 85, 86, ___, 88, ___, 90, 91, ___, 93, 94, ___, 96
Answer:
85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96.

Explanation:
Missing number pattern:
1 more than each given numbers.
=> 85, 86, 86 + 1 = 87, 88, 88 + 1 = 89, 90, 91, 91 + 1 = 92, 93, 94, 94 + 1 = 95, 96.

25. 104, 105, 106, ___, ____, 109, 110, 111, ____, ____, 114, 115
Answer:
104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115.

Explanation:
Missing number pattern:
1 more than each given numbers.
=> 104, 105, 106, 106 + 1 = 107, 107 + 1 = 108, 109, 110, 111, 111 + 1 = 112, 112 + 1 = 113, 114, 115.

26. 58, ___, 60, 61, ___, 63, 64, ___, ___, 67, 68, 69
Answer:
58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69.

Explanation:
Missing number pattern:
1 more than each given numbers.
58, 58 + 1 = 59, 60, 61, 61 + 1 = 62, 63, 64, 64 + 1 = 65, 65 + 1 = 66, 67, 68, 69.

27. ___, 30, 35, ____, 45, 50, 55, ___, 65, 70, ___, 80
Answer:
25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80.

Explanation:
Missing number pattern:
5 difference than each given numbers.
=> 25 = 30 – 5, 30, 35, 35 + 5 = 40, 45, 50, 55, 55 + 5 = 60, 65, 70, 70 + 5 = 75, 80.

28. 10, ___, ___, 40, 50, ___, 70, ___, 90, ___, ____, ____
Answer:
10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120.

Explanation:
Missing number pattern:
10 more than each given numbers.
=> 10, 10 + 10 = 20, 20 + 10 = 30, 40, 50, 50 + 10 = 60, 70, 70 + 10 = 80, 90, 90 + 10 = 100, 100 + 10 = 110, 110 + 10 = 120.

Add.

29.
Answer:

Explanation:
Addition:
5 + 4 = 9.
=> 5 minus 4 equals 9.

30.
Answer:

Explanation:
Addition:
3 + 2 = 5.
=> 3 minus 2 equals 5.

31.
Answer:

Explanation:
Addition:
8 + 1 = 9.
=> 8 minus 1 equals 9.

32.
Answer:

Explanation:
Addition:
4 + 4 = 8.
=> 4 minus 4 equals 8.

33.
Answer:

Explanation:
Addition:
0 + 9 = 9.
=> 0 minus 9 equals 9.

34.
Answer:

Explanation:
Addition:
2 + 8 = 10.
=> 2 minus 8 equals 10.

35.
Answer:

Explanation:
Addition:
6 + 3 = 9.
=> 6 minus 3 equals 9.

36.
Answer:

Explanation:
Addition:
7 + 0 = 7.
=> 7 minus 0 equals 7.

37.
Answer:

Explanation:
Addition:
9 + 1 = 10.
=> 9 minus 1 equals 10.

38.
Answer:

Explanation:
Addition:
2 + 3 = 5.
=> 2 minus 3 equals 5.

39.
Answer:

Explanation:
Addition:
1 + 5 = 6.
=> 1 minus 5 equals 6.

40.
Answer:

Explanation:
Addition:
0 + 4 = 4.
=> 0 minus 4 equals 4.

41.
Answer:

Explanation:
Addition:
4 + 6 = 10.
=> 4 minus 6 equals 10.

42.
Answer:

Explanation:
Addition:
2 + 7 = 9.
=> 2 minus 7 equals 9.

43.
Answer:

Explanation:
Addition:
6 + 0 = 6.
=> 6 minus 0 equals 6.

44.
Answer:

Explanation:
Addition:
1 + 6 = 7.
=> 1 minus 6 equals 7.

45.
Answer:

Explanation:
Addition:
0 + 8 = 8.
=> 0 minus 8 equals 8.

46.
Answer:

Explanation:
Addition:
4 + 1 = 5.
=> 4 minus 1 equals 5.

47.
Answer:

Explanation:
Addition:
1 + 0 = 1.
=> 1 minus 0 equals 1.

48.
Answer:

Explanation:
Addition:
3 + 3 = 6.
=> 3 minus 3 equals 6.

49.
Answer:

Explanation:
Addition:
5 + 2 = 7.
=> 5 minus 2 equals 7.

50.
Answer:

Explanation:
Addition:
8 + 2 = 10.
=> 8 minus 2 equals 10.

51.
Answer:

Explanation:
Addition:
5 + 3 = 8.
=> 5 minus 3 equals 8.

52.
Answer:

Explanation:
Addition:
6 + 1 = 7.
=> 6 minus 1 equals 7.

53.
Answer:

Explanation:
Addition:
7 + 3 = 10.
=> 7 minus 3 equals 10.

54.
Answer:

Explanation:
Addition:
2 + 4 = 6.
=> 2 minus 4 equals 6.

55.
Answer:

Explanation:
Addition:
3 + 5 = 8.
=> 3 minus 5 equals 8.

56.
Answer:

Explanation:
Addition:
0 + 5 = 5.
=> 0 minus 5 equals 5.

57.
Answer:

Explanation:
Addition:
1 + 7 = 8.
=> 1 minus 7 equals 8.

58.
Answer:

Explanation:
Addition:
0 + 2 = 2.
=> 0 minus 2 equals 2.

59.
Answer:

Explanation:
Addition:
0 + 0 = 0.
=> 0 minus 0 equals 0.

60.
Answer:

Explanation:
Addition:
2 + 1 = 3.
=> 2 minus 1 equals 3.

61.
Answer:

Explanation:
Addition:
4 + 2 = 6.
=> 4 minus 2 equals 6.

62.
Answer:

Explanation:
Addition:
5 + 0 = 5.
=> 5 minus 0 equals 5.

63.
Answer:

Explanation:
Addition:
1 + 3 = 4.
=> 1 minus 3 equals 4.

64.
Answer:

Explanation:
Addition:
0 + 7 = 7.
=> 0 minus 7 equals 7.

65.
Answer:

Explanation:
Addition:
2 + 6 = 8.
=> 2 minus 6 equals 8.

66.
Answer:

Explanation:
Addition:
8 + 0 = 8.
=> 8 minus 0 equals 8.

67.
Answer:

Explanation:
Addition:
6 + 4 = 10.
=> 6 minus 4 equals 10.

68.
Answer:

Explanation:
Addition:
4 + 5 = 9.
=> 4 minus 5 equals 9.

69.
Answer:

Explanation:
Addition:
3 + 6 = 9.
=> 3 minus 6 equals 9.

70.
Answer:

Explanation:
Addition:
7 + 3 = 10.
=> 7 minus 3 equals 10.

Subtract.

71.
Answer:

Explanation:
Subtraction:
8 – 6 = 2.
=> 8 minus 6 equals 2.

72.
Answer:

Explanation:
Subtraction:
5 – 4 = 1.
=> 5 minus 4 equals 1.

73.
Answer:

Explanation:
Subtraction:
9 – 1 = 8.
=> 9 minus 1 equals 8.

74.
Answer:

Explanation:
Subtraction:
10 – 7 = 3.
=> 10 minus 7 equals 3.

75.
Answer:

Explanation:
Subtraction:
2 – 0 = 2.
=> 2 minus 0 equals 2.

76.
Answer:

Explanation:
Subtraction:
4 – 2 = 2.
=> 4 minus 2 equals 2.

77.
Answer:

Explanation:
Subtraction:
6 – 3 = 3.
=> 6 minus 3 equals 3.

78.
Answer:

Explanation:
Subtraction:
7 – 6 = 1.
=> 7 minus 6 equals 1.

79.
Answer:

Explanation:
Subtraction:
9 – 5 = 4.
=> 9 minus 5 equals 4.

80.
Answer:

Explanation:
Subtraction:
4 – 4 = 0.
=> 4 minus 4 equals 0.

81.
Answer:

Explanation:
Subtraction:
3 – 1 = 2.
=> 3 minus 1 equals 2.

82.
Answer:

Explanation:
Subtraction:
1 – 0 = 1.
=> 1 minus 0 equals 1.

83.
Answer:

Explanation:
Subtraction:
8 – 2 = 6.
=> 8 minus 2 equals 6.

84.
Answer:

Explanation:
Subtraction:
10 – 8 = 2.
=> 10 minus 8 equals 2.

85.
Answer:

Explanation:
Subtraction:
9 – 9 = 0.
=> 9 minus 9 equals 0.

86.
Answer:

Explanation:
Subtraction:
6 – 5 = 1.
=> 6 minus 5 equals 1.

87.
Answer:

Explanation:
Subtraction:
8 – 4 = 4.
=> 8 minus 4 equals 4.

88.
Answer:

Explanation:
Subtraction:
9 – 3 = 6.
=> 9 minus 3 equals 6.

89.
Answer:

Explanation:
Subtraction:
10 – 4 = 6.
=> 10 minus 4 equals 6.

90.
Answer:

Explanation:
Subtraction:
9 – 6 = 3.
=> 9 minus 6 equals 3.

91.
Answer:

Explanation:
Subtraction:
5 – 2 = 3.
=> 5 minus 2 equals 3.

92.
Answer:

Explanation:
Subtraction:
7 – 4 = 3.
=> 7 minus 4 equals 3.

93.
Answer:

Explanation:
Subtraction:
8 – 8 = 0.
=> 8 minus 8 equals 0.

94.
Answer:

Explanation:
Subtraction:
10 – 3 = 7.
=> 10 minus 3 equals 7.

95.
Answer:

Explanation:
Subtraction:
6 – 1 = 5.
=> 6 minus 1 equals 5.

96.
Answer:

Explanation:
Subtraction:
3 – 3 = 0.
=> 3 minus 3 equals 0.

97.
Answer:

Explanation:
Subtraction:
10 – 2 = 8.
=> 10 minus 2 equals 8.

98.
Answer:

Explanation:
Subtraction:
8 – 0 = 8.
=> 8 minus 0 equals 8.

99.
Answer:

Explanation:
Subtraction:
6 – 4 = 2.
=> 6 minus 4 equals 2.

100.
Answer:

Explanation:
Subtraction:
10 – 1 = 9.
=> 10 minus 1 equals 9.

101.
Answer:

Explanation:
Subtraction:
9 – 7 = 2.
=> 9 minus 7 equals 2.

102.
Answer:

Explanation:
Subtraction:
8 – 5 = 3.
=> 8 minus 5 equals 3.

103.
Answer:

Explanation:
Subtraction:
10 – 10 = 0.
=> 10 minus 10 equals 0.

104.
Answer:

Explanation:
Subtraction:
5 – 3 = 2.
=> 5 minus 3 equals 2.

105.
Answer:

Explanation:
Subtraction:
1 – 1 = 0.
=> 1 minus 1 equals 0.

106.
Answer:

Explanation:
Subtraction:
5 – 0 = 5.
=> 5 minus 0 equals 5.

107.
Answer:

Explanation:
Subtraction:
8 – 3 = 5.
=> 8 minus 3 equals 5.

108.
Answer:

Explanation:
Subtraction:
10 – 0 = 10.
=> 10 minus 0 equals 10.

109.
Answer:

Explanation:
Subtraction:
9 – 2 = 7.
=> 9 minus 2 equals 7.

110.
Answer:

Explanation:
Subtraction:
10 – 6 = 4.
=> 10 minus 6 equals 4.

111.
Answer:

Explanation:
Subtraction:
3 – 2 = 1.
=> 3 minus 2 equals 1.

112.
Answer:

Explanation:
Subtraction:
2 – 2 = 0.
=> 2 minus 2 equals 0.

Solve each problem.

113. I have 4⊄.
I find 5⊄.
How much money do I have? ___ ⊄
Answer:
Total amount of money I have now = 9⊄.

Explanation:
Amount of money I have = 4⊄.
Amount of money I found = 5⊄.
Total amount of money I have now = Amount of money I have + Amount of money I found
= 4⊄ + 5⊄
= 9⊄.

114. There are 6 .
2 more come.
What is the sum of 6 plus 2? ____
Answer:
Total number of cats are there now = 8.

Explanation:
Number of cats there are = 6.
Number of cats came more = 2.
Total number of cats are there now = Number of cats there are + Number of cats came more
= 6 + 2
= 8.

115. Jerome has 3
Carla has 3
How many in all? _______
Answer:
Total number of cars in all = 6.

Explanation:
Number of cars Jerome has = 3.
Number of cars Carla has = 3.
Total number of cars in all = Number of cars Jerome has + Number of cars Carla has
= 3 + 3
= 6.

116. Paula buys for 2⊄.
She buys for 3⊄.
How much money did she spend? ____ ⊄
Answer:
Total amount of money she spends = 5⊄.

Explanation:
Cost of oranges Paula buys = 2⊄.
Cost of bananas Paula buys = 3⊄.
Total amount of money she spends = Cost of oranges Paula buys + Cost of bananas Paula buys
= 2⊄ + 3⊄
= 5⊄.

117. Andy buys for 7⊄.
He buys for 3⊄.
How much money did he spend ? ____ ⊄
Answer:
Total amount of money he spends = 10⊄.

Explanation:
Cost of juice Andy buys = 7⊄.
Cost of peanut Andy buys = 3⊄.
Total amount of money he spends = Cost of juice Andy buys + Cost of peanut Andy buys
= 7⊄ + 3⊄.
= 10⊄.

118. There is 1 .
4 more come.
What is 1 + 4? ____
Answer:
Total number of giraffes there are now = 5.
1 + 4 = 5.

Explanation:
Number of giraffes there is = 1.
Number of giraffes came more = 4.
Total number of giraffes there are now = Number of giraffes there is + Number of giraffes came more
= 1 + 4
= 5.

Solve each problem.

119. Brooke has 5⊄.
She buys for 1⊄.
How much money does she have left? ___ ⊄
Answer:
Amount of money Brooke left with = 4⊄.

Explanation:
Amount of money Brooke has = 5⊄.
Cost of pencil she buys = 1⊄.
Amount of money Brooke left with = Amount of money Brooke has – Cost of pencil she buys
= 5⊄ – 1⊄
= 4⊄.

120. There are 7 .
5 fly away.
How many are left? _______
Answer:
Number of butterflies are left =2.

Explanation:
Number of butterflies there are = 7.
Number of butterflies flew away = 5.
Number of butterflies are left = Number of butterflies there are – Number of butterflies flew away
= 7 – 5
= 2.

121. Drew wants 9 .
He has 4 .
How many more does he want? ____
Answer:
Number of balloons Drew wants more = 5.

Explanation:
Number of balloons Drew wants = 9.
Number of balloons Drew has = 4.
Number of balloons Drew wants more = Number of balloons Drew wants – Number of balloons Drew has
= 9 – 4
= 5.

122. Mike has 10⊄.
Eva has 8⊄.
How much more money does Mike have? ____ ⊄
Answer:
2⊄ more money Mike has than Eva has.

Explanation:
Amount of money Mike has = 10⊄.
Amount of money Eva has = 8⊄.
Difference:
Amount of money Mike has – Amount of money Eva has
= 10⊄ – 8⊄
= 2⊄.

123. There are 8 .
2 run away.
What is 8 minus 2? ________
Answer:
Number of dogs are left = 6.
8 minus 2 equal to 6.
Explanation:
Number of dogs there are = 8.
Number of dogs ran away = 2.
Number of dogs are left = Number of dogs there are – Number of dogs ran away
= 8 – 2
= 6.

124. Toshi has 4⊄.
She buys for 3⊄.
How much money does she have left? ____ ⊄
Answer:
Amount of money Toshi has left = 1⊄.
Explanation:
Amount of money Toshi has = 4⊄.
Amount of money Toshi buys a house = 3⊄.
Amount of money Toshi has left = Amount of money Toshi has – Amount of money Toshi buys a house
= 4⊄- 3⊄
= 1⊄.