Spectrum Math Grade 1 Chapter 2 Posttest Answer Key

Practice with the help of Spectrum Math Grade 1 Answer Key Chapter 2 Posttest regularly and improve your accuracy in solving questions.

Spectrum Math Grade 1 Chapter 2 Posttest Answers Key

Complete.

1.
____ tens ___ ones = ____
Answer:

2 tens 4 ones = 24.

Explanation:
Number of tens = (2× 10) = 20.
Number of ones = (4 × 1) = 4.
Total = Number of tens  + Number of ones
= (2 × 10) + (4 × 1)
= 20 + 4
= 24.

2.
____ tens ___ ones = ____
Answer:

3 tens 3 ones = 33.

Explanation:
Number of tens =  (10 × 3) = 30.
Number of ones = (3 × 1) = 3.
Total = Number of tens  + Number of ones
= (3 × 10) + (3 × 1)
= 30 + 3
=33.

3.
____ tens ___ ones = ____
Answer:

6 tens 0 ones = 60.

Explanation:
Number of tens =  (10 × 6) = 60.
Number of ones = (0 × 1) = 0.
Total = Number of tens  + Number of ones
= (6 × 10) + (0 × 1)
= 60 + 0
= 60.

4.
____ tens ___ ones = ____
Answer:

1 tens 5 ones = 15.

Explanation:
Number of tens = (10 × 1) = 10.
Number of ones = (5 × 1) = 5.
Total = Number of tens  + Number of ones
= (1 × 10) + (5 × 1)
= 10 + 5
= 15.

5. 4 tens 8 ones = ____
Answer:
4 tens 8 ones = 48.

Explanation:
Number of tens = (10 × 4) = 40.
Number of ones = (8 × 1) = 8.
Total = Number of tens  + Number of ones
= (4× 10) + (8 × 1)
= 40 + 8
= 48.

6. 7 tens 3 ones = ____
Answer:
7 tens 3 ones = 73.

Explanation:
Number of tens =  (10 × 7)  = 70.
Number of ones = (3 × 1) = 3.
Total = Number of tens  + Number of ones
= (7 × 10) + (3 × 1)
= 70 + 3
= 73.

7. 9 tens 5 ones = ____
Answer:
9 tens 5 ones = 95.

Explanation:
Number of tens =  (10 × 9)  = 90.
Number of ones = (5 × 1) = 5.
Total = Number of tens  + Number of ones
= (9 × 10) + (5 × 1)
= 90 + 5
= 95.

8. 6 tens 2 ones = ____
Answer:
6 tens 2 ones = 62.

Explanation:
Number of tens =  (10 × 6)  = 60.
Number of ones = (2 × 1) = 2.
Total = Number of tens  + Number of ones
= (6 × 10) + (2 × 1)
= 60 + 2
= 62.

9. 5 tens 6 ones = ____
Answer:
5 tens 6 ones = 56.

Explanation:
Number of tens =  (10 × 5) =  50.
Number of ones = (6 × 1) = 6.
Total = Number of tens  + Number of ones
= (5 × 10) + (6 × 1)
= 50 + 6
= 56.

10. 8 tens 1 one = ____
Answer:
8 tens 1 one = 81.

Explanation:
Number of tens =(10 × 8)  = 80.
Number of ones = (1 × 1) = 1.
Total = Number of tens  + Number of ones
= (8 × 10) + (1 × 1)
= 80 + 1
= 81.

11. 5 tens 8 ones = _____
Answer:
5 tens 8 ones = 58.

Explanation:
Number of tens = (10 × 5)  = 50.
Number of ones = (8 × 1) = 8.
Total = Number of tens  + Number of ones
= (5 × 10) + (8 × 1)
= 50 + 8
= 58.

12. 3 tens 9 ones = _____
Answer:
3 tens 9 ones = 39.

Explanation:
Number of tens = (10 × 3)  = 30.
Number of ones = (9 × 1) = 9.
Total = Number of tens  + Number of ones
= (3 × 10) + (9 × 1)
= 30 + 9
= 39.

13. 2 tens 7 ones = ____
Answer:
2 tens 7 ones = 27.

Explanation:
Number of tens = (10 × 2) = 20.
Number of ones = (7 × 1) = 7.
Total = Number of tens  + Number of ones
= (2 × 10) + (7 × 1)
= 20 + 7
= 27.

14. 1 ten 1 one = ____
Answer:
1 ten 1 one = 11.

Explanation:
Number of tens =  (10 × 1)  = 10.
Number of ones = (1 × 1) = 1.
Total = Number of tens  + Number of ones
= (1 × 10) + (1 × 1)
= 10 + 1
= 11.

Count forward. Write the missing numbers.

15. 47, ____, 49, 50, 51, ____, ____, 54, 55, ____, 57, 58
Answer:
47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58.

Explanation:
Missing number pattern:
1 more than missing number.
=> 47, 47 + 1 = 48, 49, 50, 51, 51 + 1 = 52, 52 + 1 = 53, 54, 55, 55 + 1 = 56, 57, 58.

16. ____, 96, 97, ___, ____, 100, ____, 102, 103, ____, 105
Answer:
95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105.

Explanation:
Missing number pattern:
1 more than missing number.
=> 96 – 1 = 95, 96, 97, 97 + 1 = 98, 98 + 1 = 99, 100, 100 + 1 = 101, 102, 103, 103 + 1 = 104, 105.

17. 110, ____, 112, 113, ____, ____, ____, 117, ____, 119, ____
Answer:
110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120.

Explanation:
Missing number pattern:
1 more than missing number.
=> 110, 110 + 1 = 111, 112, 113, 113 + 1 = 114, 114 + 1 = 115, 115 + 1 = 116, 117, 117 + 1 = 118, 119, 119 + 1 = 120.

18. ____, 25, 30, ____, 40, 45, ____, 55, 60, ____, 70, 75
Answer:
20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75.

Explanation:
Missing number pattern:
5 more than missing number.
=> 25 – 5 = 20, 25, 30, 30 + 5 = 35, 40, 45, 45 + 5 = 50, 55, 60, 60 + 5 = 65, 70, 75.

19. 60, 65, ___, 75, 80, 85, ____, ____, ___, 105, 110, ___, ____
Answer:
60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120.

Explanation:
Missing number pattern:
5 more than missing number.
=> 60, 65, 65 + 5 = 70, 75, 80, 85, 85 + 5 = 90, 90 + 5 = 95, 95 + 5 = 100, 105, 110, 110 + 5 = 115, 115 + 5 = 120.

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

Explanation:
Missing number pattern:
10 more than missing number.
=> 40, 40 + 10 = 50, 50 + 10 = 60, 60 + 10 = 70, 80, 90, 100, 100 + 10 = 110, 120.

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

21. 73 60
Answer:
73 > 60.

Explanation:
73 – Big number.
60 – Small number.
=> 73 is greater than 60.

22. 81 13
Answer:
81 > 13.

Explanation:
81 – Big number.
13 – Small number.
=> 81 is greater than 13.

23. 44 33
Answer:
44 > 33.

Explanation:
44 – Big number.
33 – Small number.
=> 44 is greater than 33.

24. 45 45
Answer:
45 = 45.

Explanation:
45 – Same number.
45 – Same number.
=> 45 is lesser than 45.

25. 57 56
Answer:
57 > 56.

Explanation:
57 – Big number.
56 – Small number.
=> 57 is greater than 56.

26. 86 97
Answer:
86 < 97.

Explanation:
86 – Small number.
97 – Big number.
=> 86 is lesser than 97.

27. 61 51
Answer:
61 > 51.

Explanation:
61 – Big number.
51 – Small number.
=> 61 is greater than 51.

28. 90 17
Answer:
90 > 17.

Explanation:
90 – Big number.
17 – Small number.
=> 90 is greater than 17.

29. 67 95
Answer:
67 < 95.

Explanation:
67 – Small number.
95 – Big number.
=> 67 is lesser than 95.

30. 93 93
Answer:
93 = 93.

Explanation:
93 – Same number.
93 – Same number.
=> 93 is lesser than 93.

31. 72 62
Answer:
72 > 62.

Explanation:
72 – Big number.
62 – Small number.
=> 72  is greater than 62.

32. 46 48
Answer:
46 < 48.

Explanation:
46 – Small number.
48 – Big number.
=> 46 is lesser than 48.

33. 16 68
Answer:
16 < 68.

Explanation:
16 – Small number.
68 – Big number.
=> 16 is lesser than 68.

34. 54 5
Answer:
54 > 5.

Explanation:
54 – Big number.
5 – Small number.
=> 54 is greater than 5.

35. 41 69
Answer:
41 < 69.

Explanation:
41 – Small number.
69 – Big number.
=> 41 is lesser than 69.

36. 78 79
Answer:
78 < 79.

Explanation:
78 – Small number.
79 – Big number.
=> 78 is lesser than 79.

37. 74 25
Answer:
74 > 25.

Explanation:
74 – Big number.
25 – Small number.
=> 74 is greater than 25.

38. 84 3
Answer:
84 > 3.

Explanation:
84 – Big number.
3 – Small number.
=> 84 is greater than 3.