Add Like Units
20+7
27
15-5
5
Make a multiple of 10.
9+ ___ = ____
9+1 = 10
Use the circles and x strategy to solve.
9 + 4
13
Solve.
29 + 5
34
20+70
90
85-20
65
Make a multiple of 10.
7+ ___ = ____
7 + 3 = 10
Use the circles and x strategy to solve.
9 + 6
15
Solve.
49 + 7
56
35+4
92
76-20
56
Make a multiple of 10.
48+ ___ = ____
48+2 = 50
Use the circles and x strategy to solve.
9 + 8
17
Solve.
59 +6
65
45+30
75
49-4
45
Make a multiple of 10.
36+ ___ = ____
36 + 4 = 40
Use the circles and x strategy to solve.
8 + 7
15
Solve.
48 + 6
54
62+30
92
67-50
17
Make a multiple of 10.
82+ ___ = ____
82+ 8 = 90
Use the circles and x strategy to solve.
7 + 9
16
Solve.
7 + 78
85