
计算下面各题,能简算的要简算13.25-5.34-7.66+4.75 &...
计算下面各题,能简算的要简算13.25-5.34-7.66+4.756.48÷[(3.3-2.7)×0.9]1013×(34+1÷56)78×139+139÷8....
计算下面各题,能简算的要简算13.25-5.34-7.66+4.75 6.48÷[(3.3-2.7)×0.9]1013×(34+1÷56) 78×139+139÷8.
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(1)13.25-5.34-7.66+4.75
=(13.25+4.75)-(5.34+7.66)
=18-13
=5
(2)6.48÷[(3.3-2.7)×0.9]
=6.48÷[0.6×0.9]
=6.48÷0.54
=12
(3)
×(
+1÷
)
=
×(
+
)
=
×
=
(4)
×
+
÷8
=
×
+
×
=(
+
)×
=1×
=
=(13.25+4.75)-(5.34+7.66)
=18-13
=5
(2)6.48÷[(3.3-2.7)×0.9]
=6.48÷[0.6×0.9]
=6.48÷0.54
=12
(3)
10 |
13 |
3 |
4 |
5 |
6 |
=
10 |
13 |
3 |
4 |
6 |
5 |
=
10 |
13 |
39 |
20 |
=
3 |
2 |
(4)
7 |
8 |
13 |
9 |
13 |
9 |
=
7 |
8 |
13 |
9 |
13 |
9 |
1 |
8 |
=(
7 |
8 |
1 |
8 |
13 |
9 |
=1×
13 |
9 |
=
13 |
9 |
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