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92÷4×25脱式计算

原式=23*25 =575

0.35×1.6+0.35×3.4 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×41846-620-380 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65) (4+0.4×0.25)8×7×1.25 1.65×99+1.65 27.85-(7....

92-37+25 =55+25 =80

(1)6.3÷(5.25×0.8)=6.3÷4.2=1.5;(2)20÷0.8-4÷0.8=25-5=20;(3)92.5×0.25×4 =92.5×(0.25×4)=92.5×1=92.5;(4)6.7×0.9+6.7×0.1=6.7×(0.9+0.1)=6.7×1=6.7.

92+92x99 =92x(99+1) =92x100 =9200

19.92-9.92+14.4=10+14.4=24.4

(1) 92×0.54+4 3 5 ×9 1 5 ,=9.2×5.4+4.6×9.2,=9.2×(5.4+4.6),=9.2×10,=92;(2) 4.75×1.36×0.375÷(4 3 4 ×1 9 25 × 3 8 ) ,=(4.75×1.36×0.375)÷(4.75×1.36×0.375),=1;(3) 1 3×5 + 1 5×7 + 1 7×9 + 1 9×11 + 1 11×13 ,=( 1...

1+2+98+99=(1+99)+(98+2)=200 2+3+97+98=(2+98)+(97+3)=200 3+4+96+97=(3+97)+(96+4)=200 4+5+95+96=(4+96)+(95+5)=200 5+6+94+95=(5+95)+(94+6)=200 6+7+93+94=(6+94)+(93+7)=200 7+8+92+93=(7+93)+(92+8)=200 8+9+91+92=(8+92)+(91+9)=200 9+1...

240÷ [ (92一7)÷5] =240÷ [ 85÷5 ] =240÷17 =240/17 26x4一125÷5 =(25+1)×4-25 =100+4-25 =79 330÷ [ 124一(85十17)] =330÷ [ 124-102 ] =330÷22 =330÷11÷2 =30÷2 =15

(1)456-56×8+92=456-448+92=8+92=100;(2)60450÷(50×30%)=60450÷15=4030;(3)44×(511-14)=44×511-44×14=20-11=9;(4)7×14+13÷4-19×0.25=7×14+13×14-19×0.25=(7+13-19)×0.25=1×0.25=0.25;(5)0.75+2.5-1.5+0.25 =0.75+0.25+(2.5...

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