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22.78 3.4

22.78除以3.4等于6.7

10.01-22.78/3.4=10.01-0.67=9.34 10.01-22.78/3.4 =3.01+7-22.78/3.4 =3.01+(23.8-22.78)/3.4 =3.01+1.02/3.4 =3.01+0.3 =3.31

解:10.7-22.78÷3.4 (只能按四则运算法则顺序计算,没有简便方法)=10.7-6.7=4

22.78-22.78÷3.4 求简便算22.78-22.78÷3.4 =22.78-6.7=16.08直接计算

10-22.78/3.4;=34/3.4-22.78/3.4;=(34-22.78)/3.4;=11.22/3.4;=1122/340;=251/170;

5.07+22.78÷3.4=5.07+(3.4*6.7)÷3.4=5.07+6.7=11.77

12.4-22.78÷3.4 订敞斥缎俪等筹劝船滑=12.4-(20.4+2.38)÷3.4 =12.4-(20.4÷3.4+2.38÷3.4) =12.4-(6+0.7) =12.4-6.7 =5.7

12.68-22.78÷3.4=12.68-6.7=5.98

9.07-22.78/3.4=9.07-2278/340=9.07-6.7=2.37望采纳

9.7-22.78÷3.4 +3.7 =9.7 -6.7+3.7=3+3.7=6.7

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