Adding/Subtracting Tens
Solve the problem
34 + 10 =
44
Write the number for 10 more, 10 less, 1 more, and 1 less
65
10 more: 75
10 less: 55
1 more: 66
1 less: 64
41
+9
_____
50
26
-8
___
18
Solve the problem
76 - 30 =
46
Write the number for 10 more, 10 less, 1 more, and 1 less
39
10 more: 49
10 less: 29
1 more: 40
1 less: 38
36
+3
___
39
65
- 4
_____
61
Solve the problem
21 + 40 =
61
Write the number for 10 more, 10 less, 1 more, and 1 less
52
10 more: 62
10 less: 42
1 more: 53
1 less: 51
45
+7
____
52
58
-7
____
51
Solve the problem
98 - 40
58
Write the number for 10 more, 10 less, 1 more, and 1 less
71
10 more: 81
10 less: 61
1 more: 72
1 less: 70
62
+8
______
70
99
- 3
_____
96
Solve the problem
16 + 70
86
Write the number for 10 more, 10 less, 1 more, and 1 less
12
10 more: 22
10 less: 2
1 more: 13
1 less: 11
34
+ 9
_____
43
66
- 8
____
58