问题
计算题
脱式计算。
|
答案
(1)124 × 5+169÷13 | |
=620+13 | |
=633 | |
(2)(300-225÷ 5)× 8 | |
=(300-45)×8 | |
= 255×8 | |
=2040 | |
(3)200+99 ×12 -138 | |
=200+1188-138 | |
=1388-138 | |
=1250 | (4)325÷25 × (266-240) |
=325÷25×26
=13×26
=338
脱式计算。
|
(1)124 × 5+169÷13 | |
=620+13 | |
=633 | |
(2)(300-225÷ 5)× 8 | |
=(300-45)×8 | |
= 255×8 | |
=2040 | |
(3)200+99 ×12 -138 | |
=200+1188-138 | |
=1388-138 | |
=1250 | (4)325÷25 × (266-240) |
=325÷25×26
=13×26
=338