题目内容
计算,能简算的要简算.
①56×(
-
+
)
②32×1.25×0.25
③(3618÷18-145)×20
④(156×
-26)×
⑤35×(1-
)÷
⑥
÷[
×(
+
)].
①56×(
| 3 |
| 7 |
| 3 |
| 8 |
| 9 |
| 14 |
②32×1.25×0.25
③(3618÷18-145)×20
④(156×
| 4 |
| 13 |
| 8 |
| 11 |
⑤35×(1-
| 3 |
| 7 |
| 5 |
| 12 |
⑥
| 9 |
| 20 |
| 3 |
| 4 |
| 2 |
| 5 |
| 1 |
| 3 |
①56×(
-
+
),
=56×
-56×
+56×
,
=24-21+36,
=39;
②32×1.25×0.25
=(8×1.25)×(4×0.25),
=10×1,
=10;
③(3618÷18-145)×20,
=(201-145)×20,
=56×20,
=1120;
④(156×
-26)×
,
=(48-26)×
,
=22×
,
=16;
⑤35×(1-
)÷
=35×
×
,
=48;
⑥
÷[
×(
+
)],
=
÷[
×
],
=
÷
,
=
×
,
=
.
| 3 |
| 7 |
| 3 |
| 8 |
| 9 |
| 14 |
=56×
| 3 |
| 7 |
| 3 |
| 8 |
| 9 |
| 14 |
=24-21+36,
=39;
②32×1.25×0.25
=(8×1.25)×(4×0.25),
=10×1,
=10;
③(3618÷18-145)×20,
=(201-145)×20,
=56×20,
=1120;
④(156×
| 4 |
| 13 |
| 8 |
| 11 |
=(48-26)×
| 8 |
| 11 |
=22×
| 8 |
| 11 |
=16;
⑤35×(1-
| 3 |
| 7 |
| 5 |
| 12 |
=35×
| 4 |
| 7 |
| 12 |
| 5 |
=48;
⑥
| 9 |
| 20 |
| 3 |
| 4 |
| 2 |
| 5 |
| 1 |
| 3 |
=
| 9 |
| 20 |
| 3 |
| 4 |
| 11 |
| 15 |
=
| 9 |
| 20 |
| 11 |
| 20 |
=
| 9 |
| 20 |
| 20 |
| 11 |
=
| 9 |
| 11 |
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