小数简便运算易错题
1.25×1.25×2.5×2.5×32 3.65×32 3.65×10.1
3.6－3.6－3.6×3.6×0.8 15.2÷0.8 15.2÷0.25÷0.25÷4
4.2×4.2×99＋99＋4.2 0.89×4.2 0.89×100.1
17.8÷17.8÷(1.78×(1.78×4) (45.9－4) (45.9－32.7)÷32.7)÷8÷0.125
9.7×9.7×99＋99＋9.7 4.36×9.7 4.36×12.5×12.5×8
15.6×15.6×13.1－13.1－15.6－15.6－15.6×15.6×2.1 0.65×2.1 0.65×101
27.5×27.5×3.7－3.7－7.5×7.5×3.7 8.54÷3.7 8.54÷2.5÷2.5÷0.4
0.25× 0.25×16.2×16.2×4 3.72×4 3.72×3.5＋3.5＋6.28×6.28×3.5
4.8×4.8×7.8＋7.8＋78×78×0.52 3.6×0.52 3.6×102
4.8－4.8－4.8×4.8×0.5 (1.25－0.5 (1.25
4.8×4.8×100.1 56.5×100.1 56.5
7.09×7.09×10.8－10.8－0.8×0.8×7.09 4.2÷7.09 4.2
320÷320÷1.25÷1.25÷8 18.76×8 18.76
3.52÷3.52÷2.5÷2.5÷0.4 0.49÷0.4 0.49
－0.125)×0.125)×8 ×9.9＋9.9＋5.65 ÷3.5 ×9.9＋9.9＋1.876 ÷1.4
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