六年级下册数学脱式计算题100道带答案
(1)3/11x7一4÷11/3 =3/11x7一4x3/11 =3/11x(7一4) =9/11 (2)6.5x4十1.25x16一3.6÷0.6 =26十1.25x8x2一6 =20十20 =40。...
(1)3/11x7一4÷11/3 =3/11x7一4x3/11 =3/11x(7一4) =9/11 (2)6.5x4十1.25x16一3.6÷0.6 =26十1.25x8x2一6 =20十20 =40。...
答:2/5X99十2/5 =2/5X(99+1) =2/5Ⅹ100 =40 50%Ⅹ48十1/2X152 =1/2X48十1/2X152 =1/2x(48十152) =1/2㐅200 =100 1.25㐅32X0.25 =1.25X8X4✘0.25 =(1.25X8)x(0.25X4) =10㐅1 =10 1/8x(32十72) =1/8x32十1/8Ⅹ72 =4十9 =13。 … = 回答,一个数除以几个数的积,可以用这个数依次除以积的几个因数商不变...