计算下面各题,能简算的要简算,并写出主要的计算过程.①7.8-8.75+2.2-1.25②13.2÷(9.4-5)+5.32③1-
计算下面各题,能简算的要简算,并写出主要的计算过程.①7.8-8.75+2.2-1.25②13.2÷(9.4-5)+5.32③1-37-47④1317-(517+110)...
计算下面各题,能简算的要简算,并写出主要的计算过程.①7.8-8.75+2.2-1.25②13.2÷(9.4-5)+5.32③1- 3 7 - 4 7 ④ 13 17 -( 5 17 + 1 10 )⑤ 1 5 +( 5 6 - 13 18 )
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①7.8-8.75+2.2-1.25, =(7.8+2.2)猜颤饥-(8.75+1.25), =10-10, =0; ②穗返13.2÷(9.4-5)+5.32, =13.2÷4.4+5.32, =3+5.32, =8.32; ③1-
=1-(
=1-1, =0; ④
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