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23.4%0.8.4%7.2=多少,简便计算.急 急急急

=(23.4-13.4)-(0.8+7.2) =10-8 =2

23.4-0.8-13.4-7.2 =(23.4-13.4)-(0.8+7.2) =10-8 =2 你好,本题已解答,如果满意,请点右下角“采纳答案”,支持一下。

=(23.4-13.4)-(0,.8+7.2) =10-8 =2

14-7.32-2.68 =14-(7.32+2.68) =14-10 =4 0.8×(4.3×1.25) =0.8×1.25×4.3 =1×4.3 =4.3 1.23+3.4-0.23+6.6 =1.23-0.23+(3.4+6.6) =1+10 =11 28.6×101-28.6 =28.6×(101-1) =28.6×100 =2860 6.032+3.6+1.98 =9.632+1.98 =9.632+2-0.02 =11.632-0.2...

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(1)2.5×3.6(2)0.875×45 (3)0.065×0.45(4)3.14×25 (5) 3.14×36 (6)3.14×16 (1)5.98÷0.23 (2)19.76÷5.2 (3)10.8÷4.5 (4)1.256÷3.14 (5)78.5÷3.1 (6)6.21÷0.31 1、88+56+12 2、178+350+22 3、56+208+144 4、(2.3+5.6)...

计算7.25×0.32的简便算法 是7.25×0.8×4=23.2对吗? 7.25*0.32 =7.25*0.4*0.8 =2.9*0.8 =2.32 不对,0.32=0.4*0.8

一、口算下面各题。(23分) 10-2.65= 0.9×0.08= 528-349= 6+14.4= 24÷0.04= 12.34-2.3= 0÷3.8= 0.77+0.33= 7÷1.4= 67.5+0.25=7.2÷8×4= 5-1.4-1.6= 400÷125÷8= 1.9×4×0.5= 80×0.125= 3× = 6 6= 2 -( + )= 10 2= 3.2×7÷3....

0.134+2.66+0.866 1.27+3.9+0.73+16.1 7.5+4.9-6.5 3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55 3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.2 0.32×403 3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×36 12.7-(3.7+0.84) 36...

1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + (...

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