括号1⼀2 +1⼀6 +3⼀4括回乘以252的简便运算是什么

2025-04-14 14:23:19
推荐回答(2个)
回答1:

(1/2 +1/6 +3/4)×252
=1/2×252+1/6×252+3/4×252
=126+42+189
=357

回答2:

(1/2 + 1/6 + 3/4)x252
=(1/2)x252+(1/6)x252+(3/4)x252
=126+42+3x63
=125+42+189
=356