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脱式计算(1)6760÷13+17×25(2)4.82%5.2÷0.8×0.6...

(1)6760÷13+17×25,=520+17×25,=520+425,=945;(2)4.82-5.2÷0.8×0.6,=4.82-6.5×0.6,=4.82-3.9,=0.92;(3) 5 6 - 3 4 ÷ 3 10 ,= 5 6 - 5 2 ,=- 5 3 ;(4)35÷ 7 8 ×1- 2 7 ,=40×1- 2 7 ,=40- 2 7 ,=39 5 7 .

(1)6760÷13+17×25=520+17×25=520+425=945;(2)4.82-5.2÷0.8×0.6=4.82-6.5×0.6=4.82-3.9=0.92;(3)(512+19-38)×72=512×72+19×72?38×72=30+8-27=11

(1)6760÷13+17×25,=520+425,=945;(2)24×[( 5 6 - 2 3 )×3],=24×[ 1 6 ×3],=24× 1 2 ,=12;(3)3.5÷[1.4×(0.1-0.05)],=3.5÷[1.4×0.05],=3.5÷0.07,=50;(4) 1 4 +[ 7 8 -( 3 4 + 1 8 )],= 1 4 +[ 7 8 - 7 8 ],= 1 4 +0,...

(1)14-7.2-2.8 =14-(7.2+2.8)=14-10=4; (2)5.5×17.3+6.6×5.5+0.1×5.5=5.5×(17.3+6.6+0.1)=5.5×24=132;(3)13.7÷12.5÷0.8=13.7÷(12.5×0.8)=13.7÷10=1.37.

=24*12分之5+24*8分之3-24*4分之1 =10+9-6 请采纳》》》》》》》》》》》》》》》》

(1)13.4+5.62+17.6+4.38,=(13.4+17.6)+(5.62+4.38),=31+10,=41.(2)3.4÷[(1.2+0.5)×5],=3.4÷[1.7×5],=3.4÷8.5,=0.4.(3)0.75×18÷0.15,=13.5÷0.15,=90.(4)2.5×3.2×1.25,=(2.5×0.4)×(8×1.25),=1×10,=10.

12.75-5/17+1/4 =12.75+0.25-5/17 =13-5/17 =12又12/17 , 1.3x1/4-0.5x25%-0.2÷4 =1.3x1/4-0.5x1/4-0.2x1/4 =(1.3-0.5-0.2)x1/4 =0.6x1/4 =0.15 , 7分之6×15分之13×65分之7 =6/7x(13/15x7/65) =6/7x7/75 =2/25 , 86.48÷{(3.45+4.65)×0....

(1)原式=(8+5)+(-6-7)=13-13=0;(2)原式=17+4-12=9;(3)原式=-27-3+54=42;(4)原式=-1-12×13(2-9)=-1+76=16.

408-12×24 = 408 - 288 = 120 (46+28)×60 = 74 x 60 = 4440 42×50-17 = 2100- 17 = 2083 32+105÷5 = 32 + 21 = 53 420×(327-238) = 420 x 89 = 37380 (4121+2389)÷7 = 6510 ÷7 = 930 3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1 0.8×[(10...

5+6+7+8+15+16+17+18 while语句之后i就等于1了,所以从5678开始加,下一个循环i=2,加15 16 17 18 所以92

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