Addition
33 + 33 =
1 ten + 6 ones =
16
25 - 10 =
15
What is the missing number?
39, 40, 41, ___, 43
42
8 + 8 =
16
13 + ? = 16
3
13 - 7 =
6
How much is a dime worth?
10 cents
9 + 3 =
12
2 tens + 8 ones =
28
14 - 7 =
7
What is the missing number?
75, 76, ___, 78, 79
77
14 + 4 =
18
7 tens + 7 ones=
90-80=
10
How much is a nickel worth?
5 cents
333 + 20 =
353
5 tens and 4 ones =
54
100-30=
70
What is the missing number?
20, 25, 30, ___, 40
35