题目内容
脱式计算.
①
×
+
×
②
÷
+
÷
③25%×32×0.125
④(37.5%+
-25%)×24.
①
| 7 |
| 13 |
| 3 |
| 4 |
| 3 |
| 4 |
| 6 |
| 13 |
②
| 3 |
| 7 |
| 7 |
| 11 |
| 4 |
| 7 |
| 7 |
| 11 |
③25%×32×0.125
④(37.5%+
| 5 |
| 6 |
①
×
+
×
,
=(
+
)×
,
=1×
,
=
;
②
÷
+
÷
,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
③25%×32×0.125,
=0.25×4×8×0.125,
=(0.25×4)×(8×0.125),
=1×1,
=1;
④(37.5%+
-25%)×24,
=(
+
-
)×24,
=
×24+
×24-
×24,,
=9+10-6,
=19-6,
=13.
| 7 |
| 13 |
| 3 |
| 4 |
| 3 |
| 4 |
| 6 |
| 13 |
=(
| 7 |
| 13 |
| 6 |
| 13 |
| 3 |
| 4 |
=1×
| 3 |
| 4 |
=
| 3 |
| 4 |
②
| 3 |
| 7 |
| 7 |
| 11 |
| 4 |
| 7 |
| 7 |
| 11 |
=
| 3 |
| 7 |
| 11 |
| 7 |
| 4 |
| 7 |
| 11 |
| 7 |
=(
| 3 |
| 7 |
| 4 |
| 7 |
| 11 |
| 7 |
=1×
| 11 |
| 7 |
=
| 11 |
| 7 |
③25%×32×0.125,
=0.25×4×8×0.125,
=(0.25×4)×(8×0.125),
=1×1,
=1;
④(37.5%+
| 5 |
| 6 |
=(
| 3 |
| 8 |
| 5 |
| 6 |
| 1 |
| 4 |
=
| 3 |
| 8 |
| 5 |
| 6 |
| 1 |
| 4 |
=9+10-6,
=19-6,
=13.
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