Page 31 - TG_G1_CH6_CHRIS

Name Date
D. Add.
Lesson 4: Add Tens 1 Tens Ones 3 Tens Ones
3 0 8 0
A. Add. 4 0 1 0
8
9
1 4 + 4 = ______ 3 6 + 3 = ______ + +
7 0 9 0
80
90
40 + 40 = ______ 60 + 30 = ______
2 Tens Ones 4 Tens Ones
6
6
2 1 + 5 = ______ 4 4 + 2 = ______ 7 0 5 0
60
60
10 + 50 = ______ 40 + 20 = ______ + 2 0 + 3 0
9 0 8 0
B. Add.
1 80 + 10 = 90 4 70 + 10 = 80 E. Problem solving.
1 Lucy has a basket that contains
2 20 + 20 = 40 5 60 + 20 = 80 20 seashells. She has another
basket that contains 30 seashells.
How many seashells does Lucy
3 40 6 50 have in all?
+ 50 + 50
50
90 100 ________________________ seashells
C. Write the missing number.
50
60
1 2 tens + 3 tens = _________ 4 10 + 50 = _________ 2 Fatima has 50 cents. Her sister has
40 cents. How many cents do
2 4 tens 5 70 + _________ = 70 they have altogether?
0
_________ + 4 tens = 80
90 cents
20
10
1 ten
3 6 tens + _________ = 7 tens 6 _________ + _________ = 30
Answers to 6 will vary. Chapter 6
Chapter 6 107 108
Practice Book, p. 107 Practice Book, p. 108
Name Date Name Date
Lesson 4: Add Tens Lesson 4: Add Tens
A. Match.
Reteach
2 tens + 3 tens 3 tens + 4 tens 4 tens + 5 tens
+ =
3 tens + 2 tens = 5 tens
40 + 50 20 + 30 30 + 40 30 20 50
Write the missing numbers.
B. Add 2 tens. Then add 3 more tens.
1 5 + 3 = 8 50 + 30 = 80
+2 tens +3 tens
1 20 40 70
+2 tens +3 tens 2 4 + 2 = 6 40 + 20 = 60
2 30 50 80
+2 tens +3 tens
3 40 60 90 3 7 + 3 = 10 70 + 30 = 100
+2 tens +3 tens
4 50 70 100
4
C. Problem Solving 6 + 2 = 8 60 + 20 = 80
Liam says that when you add 3 tens to 5 tens the answer is the
same as when you add 2 tens to 6 tens. Is he correct? Write an 5 8 tens + 3 tens = 80 + 30 = 110
addition sentence to justify your answer.
He is correct. 30 + 50 = 80 and 20 + 60 = 80.
6
4 ones + 3 ones = 4 + 3 = 7

54 Chapter 6 - Enrich 54 Chapter 6 - Reteach
Enrich Practice Book, p. 54 Reteach Practice Book, p. 54
422