Adding 10s
24 + 17 = ___
41
24 - 17 = ____
7
75 + 1 = ___
76
75 - 3 = ___
72
3 tens + 9 tens = ____ tens
12 tens
43 + 16 = ____
59
43 - 16 = ___
27
89 + 5 = ___
94
89 - 5 = ___
84
24+37=____
61
63 + 20 = ___
83
63 - 20 = ___
43
64 + 8 = ___
72
64 - 8 = ___
56
93+7=____
100
59 + 27 = ____
86
59 - 27 = ___
32
41 + 9 = ___
50
41 - 9 = ___
32
100+25=____
125
65 + 34 = ___
99
65 - 34 = ___
31
120 + 1 = ___
121
120 - 1 = ___
119
38+45=____
83