问题
计算题
脱式计算（能简便的请简便计算）
|
答案
| (1) 36+42+64+158 | |
| =(36+64)+(42+158) | |
| =100+200 | |
| =300 | (2) 1600﹣217﹣483， |
| =1600﹣(217+483) | |
| =1600﹣700 | |
| =900 | |
| (3) 42×(66﹣400÷25) | |
| =42×(66﹣16) | |
| =42×50 | |
| =2100 | (4) 163×8+137×8 |
=(163+137)×8
=300×8
=2400
(5) 4200÷25÷4
=4200÷(25×4)
=4200÷100
=42
=672÷[6×8]
=672÷48
=14