回答如下 :
22 × 0.2 + 6666 × 0.6 的数学题目
的简便计算步骤如下 :
( 1 )= 4.4 + 3999.6
( 2 )= 4004
22x0.2+6666x0.6
=22x0.2+6666x0.2x3
=0.2x(22+6666x3)
=0.2x(22+19998)
=0.2X20020
=4004
22x0.22+6666x0.6
=(22+19998)x0.2
=20020x0.2
=(20000+20)x0.2
=4000+4
=4004
运用用乘法分配律。
2222*0.2+6666*0.6
=2222*(0.2+3*0.6)
=2222*2
=4444
应用乘法分配律简便运算
解:
22x0.2十6666x0.6
=22x0.2十6666x3×0.2
=22x0.2十6666x3×0.2
=22x0.2十19998×0.2
=(22十19998)×0.2
=20020×0.2
=4004