642361324的簡便計算

2021-03-04 01:38:36 字數 1344 閱讀 1978

1樓:寶寶

642-(36+132)÷4的簡便計算

解:直接運算最簡便,

原式=642-168÷4

=642-42

=600

2樓:518姚峰峰

642-(36+132)÷4的簡便計算

=642-(36+100+32)/4

=642-(9+25+8)

=642-42

=600

3樓:匿名使用者

=642-36÷4-132÷4

=642-9-33

=642-42

=600

計算,能簡便的要簡便計算. 642-(36+132)÷4 375+...

4樓:盈公子

(1)642-(36+132)÷4

=642-168÷4

=642-42

=600;

(2)375+125÷5×12

=375+25×12

=375+300

=675;

(3)868-(168+54)

=868-168-54

=700-54

=646;

(4)88×27+27×12

=(88+12)×27

=100×27

=2700;

(5)65×99+65

=65×(99+1)

=65×100

=6500;

(6)15×23-23×5

=(15-5)×23

=10×23

=230;

(7)125×32×5

=125×8×4×5

=(125×8)×(4×5)

=1000×20

=20000;

(8)35×202

=35×(200+2)

=35×200+35×2

=7000+70

=7070;

(9)98×15

=(100-2)×15

=100×15-2×15

=1500-30

=1470;

(10)3500÷4÷25

=3500÷(4×25)

=3500÷100

=35;

(11)25×28

=25×(4×7)

=25×4×7

=100×7

=700;

(12)545-167-145

=545-145-167

=400-167

=233.

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