addition/sumas
156+221=
377
182-77=
105
7x8=
56
88÷4=
22
3/5X4/7=
12/35
276+369=
645
277-89=
188
20x12=
140
125÷5=
25
7/8x3/4=
21/32
473+896=
1,369
476-264=
212
72X20=
1440
294÷7=
42
9/11x7/9=
63/99
1974+576=
2,550
875-574=
301
124x5=
620
426÷6=
71
solve for x: 7x-4=10
x=2
1777+7777=
9,554
2776-1764=
1,012
335x9=
3,015
414÷9=
46
3/12x11/12x4/5=
132/720