-5.375*(-3)+5.375*(-7)+5.375*4怎么做_数学解答

-5.375*(-3)+5.375*(-7)+5.375*4怎么做

人气：489 ℃　时间：2020-04-22 08:30:41

解答

-5.375×(-3) + 5.375×(-7) + 5.375×4
= 5.375×3 + 5.375×(-7) + 5.375×4
= 5.375×(3 - 7 + 4)
= 5.375 × 0
= 0