Adding Tens
3 tens + 5 tens=
8 tens or 80
20 + 32 =
52
John has 12 apples. Joan gives him 20 apples. He has this many apples now.
What is 32 apples
2 tens + 3 tens =
5 tens or 50
38 + 40 =
78
Sally has 23 frogs. She catches 18 more. She has this many frogs now.
Draw an open number line to solve.
41
80 + 1 ten =
9 tens or 90
61 + 4 =
65
Joel has 16 erasers. He buys 30 more. He has this many erasers now.
46.
7 tens + 3 tens =
10 tens or 100
54 + 30 =
84
Suzie has 52 marbles. She wins 13 more. She has this many marbles now.
65
3 tens + 100
13 tens or 130
37 + 9 =
46
Linda has 45 cupcakes. Jill gives her 13 more. She has this many cupcakes to share with her class.
58