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1、i. 100道数学五年级脱式计算题ii. 30.8÷14(9.851.07) =iii. 60(9.528.9)÷0.18 =iv. 2.881÷0.430.24×3.5 = 20×(2.441.8)÷0.40.15 =v. 28-(3.4+1.25×2.4) =vi. 2.55×7.1+2.45×7.1 =vii. 777×9+1111×3 = 0.8×15.5-(3.21+5.79) =viii. （31.8+3.2×4）÷5 =ix. 31.5
2、15;4÷(6+3) =x. 0.64×25×7.8+2.2 = 2÷2.5+2.5÷2 =xi. 19464.8÷1.8×0.9 =xii. 36.72÷4.25×9.9 =xiii. 5180705×6 =xiv. 24÷2.42.5×0.8 =xv. (4121+2389)÷7 =xvi. 671×15-974 =xvii. 469×12+1492 =xviii. 405×(3213-3189) =xix. 3.416÷
3、（0.016×35）= 0.8×(106.76)÷1.2 =xx. 19.4×6.1×2.3 =xxi. 5.67×0.2-0.62 =xxii. 18.1×0.92+3.93 =xxiii. 0.0430.24+0.875 = 0.4×0.7×0.25 =xxiv. 0.75×102 100-56.23 =xxv. 0.78+5.436+1 =xxvi. 4.07×0.86+9.12.5 =xxvii. 30.8÷14(9.851.07) =xxviii. 60(9.528
4、.9)÷0.18 =xxix. 2.881÷0.430.24×3.5 = 20×(2.441.8)÷0.40.15 =xxx. 28-(3.4+1.25×2.4) =xxxi. 2.55×7.1+2.45×7.1 =xxxii. 777×9+1111×3 = 0.8×15.5-(3.21+5.79) =xxxiii. （31.8+3.2×4）÷5 =xxxiv. 31.5×4÷(6+3) = 0.64×25×7.8+2.2 =
5、 2÷2.5+2.5÷2 =xxxv. 19464.8÷1.8×0.9 =xxxvi. 36.72÷4.25×9.9 =xxxvii. 5180705×6 = 24÷2.42.5×0.8 =xxxviii. (4121+2389)÷7 =xxxix. 671×15-974 =xl. 469×12+1492 =xli. 405×(3213-3189) =xlii. 3.416÷（0.016×35） = 0.8×(106.76)÷1.2 =xliii. 19.4×6.1×2.3 5.67×0.2-0.62 =xliv. 18.1×0.92+3.93 0.0430.24+0.875 = 0.4×0.7×0.25 0.75×102 100-56.23 =xlv. 0.78+5.436+1 4.07×0.86+9.12.5 =