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五年级计算比赛试题
6.9+4.8+3.1 0.456+6.22+3.78 15.89+(6.75-5.89)
4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48)
3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.2
3.82+2.9+0.18+9.1 9.6+4.8-3.6 7.14-0.53-2.47
5.27+2.86-0.66+1.63 13.35-4.68+2.65 73.8-1.64-13.8-5.36
47.8-7.45+8.8 0.398+0.36+3.64 15.75+3.59-0.59+14.25
66.86-8.66-1.34 0.25×16.2×4 (1.25-0.125)×8
3.6×102 3.72×3.5+6.28×3.5 36.8-3.9-6.1
15.6×13.1-15.6-15.6×2.1 4.8×7.8+78×0.52 32+4.9-0.9
4.8×100.1 56.5×9.9+56.5 7.09×10.8-0.8×7.09
91÷x=1.3 x÷5+9=21 48-27+5x=31
410-3x=170 x+2x+18=78 (200-x)÷5=30
(x-140)÷70=4 (27.5-3.5)÷x=4 x+19.8=25.8
2x-20=4 2(x-3)=5.8 9.8-x=3.8
3x+6=18 65x+7=42 75.6÷x=12.6
2(2.8+x)=10.4 9x+4×2.5=91 (x-3)÷2=7.5
5(x+8)=102 3x=x+100
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