Subtraction
63-5
58
square with a side 4 inches
x+45=98
53
71
70
15+5
20
86-32
54
a rectangle with 2 sides at 4 inches and 2 sides at 6 inches
20 inches
26+x=85
59
44
40
23+86
109
875-8
867
a triangle with one side at 3 inches, one at 5 inches, and one at 7 inches
15 inches
47+x=356
309
45
50
543+42
585
432-53
379
a square with a side at 10 inches
40 inches
x-86=23
109
84
80
236+245
481
542-234
308
a triangle with one side at 8 inches, one at 10 inches, and one at 12 inches.
30 inches
x-12=98
86
33
30
456+397
853