Page 43 - TG_G1_CH6_CHRIS

Name Date
D. Color every flower that has a sum that is greater than 40.
Lesson 6: Adding a Two-Digit Number 1 3 5
and a Multiple of 10
17 + 30 20 + 20 36 + 1
A. Add.
1 Tens Ones 2 Tens Ones 3 Tens Ones
2 9 7 0 8 0
+ 4 0 + 1 5 + 1 9 2 4 6
6 9 8 5 9 9
19 + 20 40 + 6 20 + 30
B. Match.
30 + 8 75 + 4
E. Problem solving.
30 + 50 30 + 26
1 There are 23 birds in a tree. 10
70 + 9 38 + 0 more birds join them. How many
birds are there now?
46 + 10 6 tens and 2 tens
33
__________________________ birds
C. Add.
1 60 + 12 = 72 5 33 7 40 2 Ronald has 2 books of stamps.
+ 30 + 50 The first book has 40 stamps. The
2 81 + 10 = 91 63 90 second book has 37 stamps.
How many stamps does Ronald
3 70 + 9 = 79 6 6 8 49 have in all?
+ 20 + 50
77
4 51 + 5 = 56 26 99 _______________________ stamps
112 Chapter 6
Chapter 6 111

Practice Book, p. 111 Practice Book, p. 112

Name Date Name Date
Lesson 6: Adding a 2-Digit Number Lesson 6: Adding a 2-Digit Number
and a Multiple of 10 and a Multiple of 10
A. Add. Reteach
1 2 tens + 45 = 65 Tens Ones
2 3 ones + 10 = 13 + = 3 5
3 3 tens + 10 = 40 + 2 0
5 5
4 5 ones + 45 = 50 35 + 20 = 55
B. Add. Write the tens and ones.
Add.
1 2
Tens OnesTens Ones Tens OnesTens Ones 1 Tens Ones 3 Tens Ones
6 3 3 4
+ 5 + 3 0
6 8 6 4
63 + 5 = 68 34 + 30 = 64 + +
5 2 5 4
C. Problem Solving
Oliver says that 55 + 40 and 55 + 4 equal the same sum. Do you 2 Tens Ones 4 Tens Ones
agree with him? Use the place-value charts to justify your answer.
I disagree with him. The sums 95 and 59 are different.
Tens OnesTens Ones Tens OnesOnes
Tens
5 5 5 5
+ 4 0 + 0 4 + +
9 5 5 9 4 3 4 5

56 Chapter 6 - Enrich 56 Chapter 6 - Reteach
Enrich Practice Book, p. 56 Reteach Practice Book, p. 56
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