问题
计算题
脱式计算。 | ||||||
|
答案
(1)624-189-246 | |
=435-246 | |
=189 | (2)750-135×5 |
=750-675 | |
=75 | (3)1294-(513+294) |
=1294-807 | |
=487 | |
(4)423×2×5 | |
=846×5 | |
=4230 | (5)(340-256)÷7 |
=84÷7 |
=12
=1000-101
=899
脱式计算。 | ||||||
|
(1)624-189-246 | |
=435-246 | |
=189 | (2)750-135×5 |
=750-675 | |
=75 | (3)1294-(513+294) |
=1294-807 | |
=487 | |
(4)423×2×5 | |
=846×5 | |
=4230 | (5)(340-256)÷7 |
=84÷7 |
=12
=1000-101
=899