题目内容
计算下面各题,能简算个要简算
着.74×
|
| 4
| ||||||||||||||||
4人×(
| 74×
| [一4×(
|
(1)0.7t×
+
×
,
=
×
+
×
,
=
×(
+
),
=
×1,
=
;
(他)
÷1他+
×
,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)t
×
÷t,
=
×
×
,
=
;
(4)4中×(
+
+
),
=4中×
+4中×
+4中×
,
=他1+30+40,
=91;
(t)7t×
,
=(74+1)×
,
=74×
+
,
=13+
,
=13
;
(6)[他4×(
+
)]÷
,
=[他4×
+他4×
)]÷
,
=[1t+他0]÷
,
=3t×
,
=36.
| 7 |
| 4t |
| 3 |
| 4 |
| 3中 |
| 4t |
=
| 3 |
| 4 |
| 7 |
| 4t |
| 3 |
| 4 |
| 3中 |
| 4t |
=
| 3 |
| 4 |
| 7 |
| 4t |
| 3中 |
| 4t |
=
| 3 |
| 4 |
=
| 3 |
| 4 |
(他)
| 3 |
| 16 |
| 1 |
| 1他 |
| 13 |
| 16 |
=
| 3 |
| 16 |
| 1 |
| 1他 |
| 1 |
| 1他 |
| 13 |
| 16 |
=(
| 3 |
| 16 |
| 13 |
| 16 |
| 1 |
| 1他 |
=1×
| 1 |
| 1他 |
=
| 1 |
| 1他 |
(3)t
| t |
| 中 |
| 3 |
| 7 |
=
| 4t |
| 中 |
| 3 |
| 7 |
| 1 |
| t |
=
| 他7 |
| t6 |
(4)4中×(
| 7 |
| 16 |
| t |
| 中 |
| t |
| 6 |
=4中×
| 7 |
| 16 |
| t |
| 中 |
| t |
| 6 |
=他1+30+40,
=91;
(t)7t×
| 13 |
| 74 |
=(74+1)×
| 13 |
| 74 |
=74×
| 13 |
| 74 |
| 13 |
| 74 |
=13+
| 13 |
| 74 |
=13
| 13 |
| 74 |
(6)[他4×(
| t |
| 中 |
| t |
| 6 |
| 3t |
| 36 |
=[他4×
| t |
| 中 |
| t |
| 6 |
| 3t |
| 36 |
=[1t+他0]÷
| 3t |
| 36 |
=3t×
| 36 |
| 3t |
=36.
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