135*27*135*72+135 、42-99+42简便运算怎么做
135*27*135*72+135 、42-99+42简便运算怎么做
135*27*135*72+135
=135*(27+72+1)
=135*100
=13500
42-99+42
=84-99
=-15
135*27+135*27+135怎么简便运算
135*27+135*27+135
=135*(27+27+1)
=135*55
=(140-5) * (50+5)
=140*50+140*5-5*50-5*5
=7000+700-250-25
=7700-250-25
=7450-25
=7425
简便计算135×27+35×72+135
135×27+135×72+135
=135×(27+72+1)
=135×100
=13500
135×29+135×72-135的简便运算
135×29+135×72-135
=135x(29+72-1)
=135x100
=13500
简便运算135×99
135x99
=135x100-135
=13500-135
=13365
135×99的简便运算
135×99
=135×(100-1)
=135×100-135
=13500-135
=13365
(135x99 +135)x4简便运算
(135×99+135)×4
=(99+1)×(135×4)
=100×540
=54000
135×45的简便运算怎么做
135×45的简便运算怎么做
=135x(40+5)
=5400+675
=6075
简便运算98*135 135*3-135
98*135 +135*3-135
=(98+3-1)×135
=100×135
=13500