77×55+77×46-77的简便计算
77×55+77×46-77的简便计算
77×55+77×46-77
=77×(55+46-1)
=77×100
=7700
77*23 78*77-77简便计算
77*23+78*77-77
=(23+78-1)*77
=100*77
=7700
77×49+77+50×77简便计算
77×49+77+50×77=77x(49+1+50)=77x100=7700
简便计算8:46-(3:46-0:77)
简便计算:
8.46-(3.46-0.77)
=8.46-3.46+0.77
=5+0.77
=5.77,
77乘1001减77的简便计算
77×1001-77
=77×1001-1×77
=77×(1001-1)
=77×1000
=77000
77乘83加77乘17=简便计算
77乘83加77乘17=简便计算
=77x(83+17)
=77x100
=7700
79×8 4×77-2×77的简便计算
79×8+4×77-2×77
=(2+77)x8+(4-2)x77
=2x8+77x8+2x77
=16+77x(8+2)
=16+77x10
=16+770
=786
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45*77+23*77+32*77怎么简便计算
原式
=45x77+23x77+32x77
=(45+23+32)x77
=100x77
=7700
89×54-77×54+12×46用简便计算
=54×(89-77)+12×46
=54×12+12×46
=12×(54+46)
=12×100
=1200
77/78*77怎么简便计算
解答:
77/78*77=(78-1)/78*77=(1-1/78)*77
=77-77/78=76又1/78
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