45x56 54x56 56简算

用简便方法计算45x56十54*56十56解:45x56十54*56十56=(45十54+1)*56=100*56=5600

45x56+54x56+56=56x(45+54+1)= 56x100=5600

45x56十54*56十56=(45x十54十1)*56=100*56=5600

48x56+54x56-56x2=56x(48-2+54)=56x100=5600

解:来54x56等于( 3024 ) ∵已知源需求出54x56等于多2113少 X *5261 (Y - Z)= X * Y - X * Z ∴410254 x 56 = 54 * (60 - 4) = 54 * 60 - 54 * 4 = 3240 - 216 = 3024 答:165354x56等于3024

3.8x56 +45x3.83.8=3.8*(56+45-1)=3.8*100=380

45x0.6250.625 56x62.5怎么简算 =45*0.625-0.625+5600*0.625=(45-1+5600)*0.625=3527.5如果题目修改为45x0.625-0.625+0.56x62.5=45*0.625-0.625+56*0.625=(45-1+56)*0.625=100*0.625=62.5

简便计算过程方法如下解:56*45*12=56x45x2x6=(56x6)x(45x2)=336x90=30240

解:28x56+45x28-28=28*(56+45-1)=28*100=2800

你好!34x56-134+45x134的简便运算=34x56+134x(45-1)=34x56+34x444+100x44=34x(56+44)+4400=3400+4400=7800 仅代表个人观点,不喜勿喷,谢谢.

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