Question

求两道五年级简便计算题

27.3×3.6+36×7.27=?
要用简便法解释 我帮朋友问的
还有一道
(4.69×2.3+53.1×0.232)÷2.3=?

Answer 1

27.3 x3.6+3.6 x 72.7=
3.6x ( 27.3+72.7)
=360

Answer 2

(1) (27.3+72.7)x3.6=360
第二题,题目打错了把.
应该是(4.69×2.3+53.1×0.23)÷2.3=?
[(46.9+53.1)x2.3]÷2.3=100

Answer 3

（1）27.3*36+36*7.27=36*2.73+36*7.27=(2.73+7.27)*36=10*36=360
(2)好像题目错了吧？那个0.232似乎是0.23

Answer 4

27.3*3.6+36*7.27=36*(7.27+2.73)=360
(4.69*2.3+53.1*0.232)/2.3=2.3*(4.69+5.31)/2.3=10

Answer 5

27.3×3.6+36×7.27=27.3×3.6+3.6×72.7=3.6×(27.3+72.7)=3.6×100=360