简便计算题:
1)6.9+4.8+3.1 0.456+6.22+3.78 15.89+(6.75-5.89)
2)4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75—6.48)
3)3.68+7.56-2.68 7.2
4)3.82+2.9+0.18+9.1 5)5.27+2.86-0.66+1.63 -5.36
6)47.8-7.45+8.8 0.59+14.25
7)66.86-8.66-1.34 8)3.6×102 9)28.6×101-28.6 10)4.8×100.1 7.09
7.85+2.34-0.85+4.66 9.6+4.8-3.6 13.35-4.68+2.65 0.398+0.36+3.64 0.25×16.2×4 3.72×3.5+6.28×3.5 4.8×7.8+78×0.52 56.5×9.9+56.5 35.6-1.8-15.6-7.14-0.53-2.47
73.8-1.64-13.8 15.75+3.59- (1.25-0.125)×8
36.8-3.9-6.1
32+4.9-0.9
7.09×10.8-0.8×
11)25.48-(9.4-0.52) 4.2÷3.5 320÷1.25÷8
12)18.76×9.9+18.76 3.52÷2.5÷0.4 3.9-4.1+6.1-5.9
13)5.6÷3.5 9.6÷0.8÷0.4 4.2×99+4.2
14)17.8÷(1.78×4) 15)15.2÷0.25÷4 16)3.83×4.56+3.83×5.44 17)27.5×3.7-7.5×3.7 18)(45.9-32.7)÷8÷0.125 2.5÷0.4
19)7.2×0.2+2.4×1.4 ×2.26
20)3.9×2.7+3.9×7.3 21)21×(9.3-3.7)-5.6 22)2.3×16+2.3×23+2.3 0.49÷1.4 1.25×2.5×32 0.89×100.1 146.5-(23+46.5) 4.36×12.5×8 9.7×99+9.7
8.54÷2.5÷0.4 0.65×101
3.14×0.68+31.4×0.032 5.6÷1.25÷0.8÷8.9×1.01 7.74×(2.8-1.3)+1.5-1.8÷0.125÷0.8 12.7×9.9+1.27 15.02-6.8-1.02 5.4×11-5.4
9.43-(6.28-1.57) 3.65×4.7-36.5
18
×0.37
23)46×57+23×86 13.7×0.25-3.7÷4 2.22×9.9+6.66×6.7
24)101×0.87-0.91×87 10.7×16.1-15.1×10.7 0.79×199
26)2.35+1.713+0.287+7.65 6.02+3.6+1.98
27)0.134+2.66+0.866 1.27+3.9+0.73+16.1 6.5
28)3.07-0.38-1.62 1.29+3.7+2.71+6.3 29)3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.2 30)3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 31)12.7-(3.7+0.84) 36.54-1.76-4.54 32)7.6×0.8+0.2×7.6 0.85×199 33)1.28×8.6+0.72×8.6 12.5×0.96×0.8 0.35
1.57+0.245+7.43 7.5+4.9- 8-2.45-1.55
0.32×403
0.25×36
0.25×0.73×4
0.25×8.5×4 10.4-9.6×
34)0.8×(4.3×1.25) 3.12+3.12×99
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