题目内容
计算,能简算的要简算.
(0.45-0.45×
)÷45%
×7.9+
×10%
(0.45-0.45×
| 1 |
| 3 |
| 3 |
| 8 |
| 3 |
| 8 |
(1)(0.45-0.45×
)÷45%,
=(0.45-0.45×
)÷0.45,
=(0.45-0.15)÷0.45,
=0.3÷0.45,
=
;
(2)
×7.9+
×10%,
=
×7.9+
×0.1,
=
×(7.9+0.1),
=
×8,
=3.
| 1 |
| 3 |
=(0.45-0.45×
| 1 |
| 3 |
=(0.45-0.15)÷0.45,
=0.3÷0.45,
=
| 2 |
| 3 |
(2)
| 3 |
| 8 |
| 3 |
| 8 |
=
| 3 |
| 8 |
| 3 |
| 8 |
=
| 3 |
| 8 |
=
| 3 |
| 8 |
=3.
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