题目内容
简便运算.
198-(98+37)
×12.5×
×8
×40-
÷
.
198-(98+37)
| 7 |
| 4 |
| 5 |
| 7 |
| 7 |
| 16 |
| 5 |
| 16 |
| 1 |
| 40 |
(1)198-(98+37 )
=198-98-37,
=100-37,
=63;
(3)
×12.5×
×8
=(
×
)×(12.5×8),
=
×100,
=125;
×40-
÷
=
×40-
×40,
=(
-
)×40,
=
×40,
=5.
=198-98-37,
=100-37,
=63;
(3)
| 7 |
| 4 |
| 5 |
| 7 |
=(
| 7 |
| 4 |
| 5 |
| 7 |
=
| 5 |
| 4 |
=125;
| 7 |
| 16 |
| 5 |
| 16 |
| 1 |
| 40 |
=
| 7 |
| 16 |
| 5 |
| 16 |
=(
| 7 |
| 16 |
| 5 |
| 16 |
=
| 1 |
| 8 |
=5.
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