Subtraction within 20
18-9
9
50-20
30
6 tens - 2 tens=
4 tens
Derrinka has 80 Stickers. Richard has 20 Stickers. How many more stickers does Derrinka have than Richard?
60
40 + ? = 60, so 60 - 40 = ? .
20
14-10
4
80-30
50
6 tens and 6 ones - 1 ten =
5 tens and 6 ones (56)
Mari has 80 sports cards.She gives 40 cards to her brother. How many cards does Mari have left?
40
60-?= 30
30
20-5
15
75-10
65
4 tens (40)
A store has 52 cars. They sell 10 cars. How many cars does the store have left?
42
19-?= 15
4
20-20
0
66-10
56
5 tens- 2 tens=
3 tens (30)
Ms.Charles-Pierre had 70 sneakers. She sold 30. How may sneakers does have have left?
40
15-?=5
10
16-3
13
87-10
77
9 tens and 4 ones- 1 ten =
8 tens and 4 ones = (84)
Dylan had 90 stickers. He gave 50 away. How many stickers does Dylan have now?
40
20 +? = 70, so 70 -20 = ? .
50