5 11 1 8 454+37=—+—=—×—=
8 8 5 7 57+29=
11 1 3 660+480=—-—=75% ×—=
7 7 4 29+70=
9 1 1 1 540÷20=—÷—=—÷—=
8 2 5 4 96-0.3=
1 7 0.2×0.4=
6 -—= 6 ÷—=
4 6 8.4÷0.3=
9 3 10 6.91+0.35=—+—=7 ×—=
8 4 9 59.5-4=
9 4 10 3 8.2+0.11=—+—=—+—=
8 5 9 4 7.4+0.22=3344 ÷ 16 + 54 × 5 8%x + 17 = 79
6.3 + 2.7 + 3.7 +
7.3 0.25 × 3.2 × 0.125
6 : x = 80 : 8.1 7x - 0.5×8 = 8
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