McGraw Hill My Math Grade 1 Chapter 6 Lesson 2 Answer Key Count On Tens and Ones

All the solutions provided in McGraw Hill My Math Grade 1 Answer Key PDF Chapter 6 Lesson 2 Count On Tens and Ones will give you a clear idea of the concepts.

McGraw-Hill My Math Grade 1 Answer Key Chapter 6 Lesson 2 Count On Tens and Ones

Explore and Explain

Teacher Directions: Use and to model. There are 35 people at a baseball game. 3 more people come to the game. How many people are at the game in all? Draw the rods and units that you used. Explain to a classmate how you found the answer.
Answer:

Explanation:
Start at 35
Count on 36, 37, 38
The sum is 38.

See and Show

Find 26 + 3.
Count on by ones.

Find 26 + 30.
Count on by tens.

Count on to add. Use and . Write the sum.

Question 1.

47 + 2 = ______________
Answer:
49

Explanation:
Count by 1’s
Start at 47
Count on 48, 49
The sum is 49.

Question 2.

47 + 20 = ______________
Answer:
67

Explanation:
Count by 10’s
Start at 47
Count on 57, 67
The sum is 67.

Question 3.

13 + 3 = _______________
Answer:
16

Explanation:
Count by 1’s
Start at 13
Count on 14, 15, 16
The sum is 16.

Question 4.

13 + 30 = _______________
Answer:
43

Explanation:
Count by 10’s
Start at 13
Count on 23, 33, 43
The sum is 43.

Talk Math How many tens do you count on to add 32 + 40? Explain.
Answer:
4 tens

Explanation:
In 40 there are 4 tens
40 = 4 tens
So, i will count on 4 tens to add 40.

On My Own

Count on to add. Use and . Write the sum.

Question 5.

50 + 14 = _____________
Answer:
64

Explanation:
Count by 10’s
Start at 50
Count on 60
Count by 1’s
Start at 60
Count on 61, 62, 63, 64
The sum is 64.

Question 6.

25 + 3 = _______________
Answer:
28

Explanation:
Count by 1’s
Start at 28
Count on 26, 27, 28
The sum is 28.

Question 7.
30 + 22 = ______________
Answer:

Explanation:
Count by 10’s
Start at 30
Count on 40, 50
Count by 1’s
Start at 60
Count on 51, 52
The sum is 52.

Question 8.
66 + 2 = _______________
Answer:

Explanation:
Count by 1’s
Start at 66
Count on 67, 68
The sum is 68.

Question 9.
53 + 20 = ______________
Answer:

Explanation:
Count by 10’s
Start at 53
Count on 63, 73
The sum is 73.

Question 10.
14 + 3 = _______________
Answer:

Explanation:
Count by 1’s
Start at 14
Count on 15, 16, 17
The sum is 17.

Question 11.
51 + 3 = _______________
Answer:

Explanation:
Count by 1’s
Start at 51
Count on 52, 53, 54
The sum is 54.

Question 12.
20 + 76 = ________________
Answer:

Explanation:
Count by 10’s
Start at 20
Count on 30, 40, 50, 60, 70, 80, 90
Count by 1’s
Start at 90
Count on 91, 92, 93, 94, 95, 96
The sum is 96.

Question 13.

Answer:

Explanation:
The sum of 44 and 3 is 47.

Question 14.

Answer:

Explanation:
The sum of 10 and 88 is 98.

Question 15.

Answer:

Explanation:
The sum of 88 and 1 is 89.

Question 16.

Answer:

Explanation:
The sum of 33 and 3 is 36.

Question 17.

Answer:

Explanation:
The sum of 12 and 2 is 14.

Question 18.

Answer:

Explanation:
The sum of 79 and 20 is 99.

Problem Solving

Question 19.
Percy sees 3 ants in his ant farm. He sees 12 more ants. How many ants does he see in all?
_____________ ants
Answer:
15 ants

Explanation:
Percy sees 3 ants in his ant farm
He sees 12 more ants
Count by 1’s
Start with the greater number
Start at 12
Count on, 13, 14, 15
The sum is 15
So, Percy saw 15 ants in all.

Question 20.
Kevin’s team and Alonso’s team each have 25 points. Kevin’s team scores 30 more points.
Kevin’s team has _____________ points.
Alonso’s team scores 30 more points.
Alonso’s team has _____________ points.
Answer:
Kevin’s team has 25 points.
Alonso’s team scores 30 more points.
Alonso’s team has 55 points.

Explanation:
Kevin’s team and Alonso’s team each have 25 points
Kevin’s team scores 30 more points
Count by 10’s
Start at 25
Count on 35, 45, 55
The sum is 55
So, Alonso’s team has 55 points.

Write Math Find 54 + 3. Explain how you add the ones.
Answer:
54 + 3 = 57

Explanation:
54 + 3
Count by 1’s
Start at 54
Count on 55, 56, 57
The sum is 57
So, 54 + 3 = 57.

McGraw Hill My Math Grade 1 Chapter 6 Lesson 2 My Homework Answer Key

Practice

Count on to add.

Question 1.

27 + 30 = _____________
Answer:
57

Explanation:
Count by 10’s
Start at 27
Count on 37, 47, 57
The sum is 57.

Question 2.

74 + 3 = ______________
Answer:
77

Explanation:
Count by 1’s
Start at 74
Count on 75, 76, 77
The sum is 77.

Question 3.
66 + 3 = _______________
Answer:

Explanation:
Count by 1’s
Start at 66
Count on 67, 68, 69
The sum is 69.

Question 4.
12 + 70 = _______________
Answer:

Explanation:
Count by 10’s
Start at 70
Count on 80
Count by 1’s
Start at 80
Count on 81, 82
The sum is 82.

Question 5.
51 + 3 = _______________
Answer:

Explanation:
Count by 1’s
Start at 51
Count on 52, 53, 54
The sum is

Question 6.
87 + 1 = _____________
Answer:

Explanation:
Count by 1’s
Start at 87
Count on 88
The sum is 88.

Question 7.

Answer:

Explanation:
The sum of 32 and 20 is 52.

Question 8.

Answer:

Explanation:
The sum of 46 and 10 is 56.

Question 9.

Answer:

Explanation:
The sum of 97 and 2 is 99.

Question 10.

Answer:

Explanation:
The sum of 26 and 10 is 36.

Question 11.

Answer:

Explanation:
The sum of 40 and 2 is 42.

Question 12.

Answer:

Explanation:
The sum of 64 and 20 is 84.

Question 13.
The children’s choir sang 17 songs on Wednesday and 2 songs on Thursday. How many songs did they sing in all?
_____________ songs
Answer:
19 songs

Explanation:
The children’s choir sang 17 songs on Wednesday
2 songs on Thursday
Count by 1’s
Strat at 17
Count on 18, 19
The sum is 19
So, the children’s choir sang 19 songs in all.

Test Practice

Question 14.
70 + 20 = ____________
(A) 78
(B) 85
(C) 88
(D) 90
Answer:
(D) 90

Explanation:
Count by 10’s
Start at 70
Count on 80, 90
The sum is 90.

Math at Home Say a number between 10 and 50. Ask your child to count on by ones. Repeat. Ask your child to count on by tens.
Answer: