能简算的要简算
31.5×4÷(6+3) = = =
30.8÷[14－(9.85＋1.07)] = = = =
[60－(9.5＋28.9)]÷0.18 = = = = 0.8×〔15.5-(3.21+5.79)〕 = = =
2.881÷0.43－0.24×3.5 = = = = 20×[(2.44－1.8)÷0.4＋0.15] = = = = =
28-(3.4+1.25×2.4) = = =
2.55×7.1+2.45×7.1 = =
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=
0.78+5.436+1 = =
4.07×0.86+9.12.5 = =
30.8÷[14－(9.85＋1.07)] = = =
777×9+111×3 = = =
（31.8+3.2×4）÷5 = = = = 0.64×25×7.8+2.2 = = = 2÷2.5+2.5÷2 = = =
194－64.8÷1.8×0.9 = = =
36.72÷4.25×9.9 =
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= =
5180－705×6 = = = 24÷2.4－2.5×0.8 = = =
(4121+2389)÷7 = = 671×15-974 = =
469×12+1492 = =
405×(3213-3189) = =
3.416÷（0.016×35） = = 0.8×[(10－6.76)÷1.2] = = =
19.4×6.1×2.3 = =
5.67×0.2-0.62 = =
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18.1×0.92+3.93 = =
0.043-0.24+0.875 = = 0.4×0.7×0.25 = =
0.75×102 +100-56.23 [60－(9.5＋28.9)]÷0.18 = = =
2.881÷0.43－0.24×3.5 = = = 20×[(2.44－1.8)÷0.4＋0.15] = =
28-(3.4+1.25×2.4) = = =
2.55×7.1+2.45×7.1 = = =
777×9+1111×3 = = 0.8×〔15.5-(3.21+5.79)〕 = =
学习资料收集于网络，仅供参考
（31.8+3.2×4）÷5 = =
31.5×4÷(6+3) = =
0.64×25×7.8+2.2 = = 2÷2.5+2.5÷2 = =
194－64.8÷1.8×0.9 = =
36.72÷4.25×9.9 = =
5180－705×6 = = 24÷2.4－2.5×0.8 = =
(4121+2389)÷7 = =
671×15-974
469×12+1492 = =
学习资料
405×(3213-3189) = =
3.416÷（0.016×35） = = 0.8×[(10－6.76)÷1.2] = = =
19.4×6.1×2.3 5.67×0.2-0.62 = = =
18.1×0.92+3.93 = = = 0.4×0.7×0.25 = =
0.78+5.436+1 4.07×0.86+9.12.5 =
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