Doubling and Halving
Half of 86
43
46 x 5
230
60 x 3
180
23 + 45
68
39 - 17
22
Double 34
68
34 x 50
1,700
90 x 4
360
56 + 37
93
53 - 21
32
Half of 148
74
53 x 5
265
59 x 2
118
83 + 54
137
79 - 44
35
Double 247
494
67 x 50
3,350
73 x 6
438
66 + 78
144
97 - 51
46