
怎样简便就怎样算.(56+18)÷124; &n...
怎样简便就怎样算.(56+18)÷124;76×1315-16×1315;7.32×101-7.32;4-45÷4-45....
怎样简便就怎样算.(56+18)÷124; 76×1315-16×1315;7.32×101-7.32; 4-45÷4-45.
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(1)(
+
)÷
=(
+
)×24
=
×24+
×24
=20+3
=23
(2)
×
-
×
=
×(
-
)
=
(3)7.32×101-7.32
=7.32×(101-1)
=7.32×100
=732
(4)4-
÷4-
=4-
-
=4-(
+
)
=3.
5 |
6 |
1 |
8 |
1 |
24 |
=(
5 |
6 |
1 |
8 |
=
5 |
6 |
1 |
8 |
=20+3
=23
(2)
7 |
6 |
13 |
15 |
1 |
6 |
13 |
15 |
=
13 |
15 |
7 |
6 |
1 |
6 |
=
13 |
15 |
(3)7.32×101-7.32
=7.32×(101-1)
=7.32×100
=732
(4)4-
4 |
5 |
4 |
5 |
=4-
1 |
5 |
4 |
5 |
=4-(
1 |
5 |
4 |
5 |
=3.
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