
计算(1)14÷(?12)3?(118?334+113)×24(2)?8×(?2)4?(?12)2×(?2)4+49×(?3)2
计算(1)14÷(?12)3?(118?334+113)×24(2)?8×(?2)4?(?12)2×(?2)4+49×(?3)2....
计算(1)14÷(?12)3?(118?334+113)×24(2)?8×(?2)4?(?12)2×(?2)4+49×(?3)2.
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(1)
÷(?
)3?(1
?3
+1
)×24
=
÷(-
)-1
×24+3
×24-1
×24
=-2-17+90-32
=39;
(2)?8×(?2)4?(?
)2×(?2)4+
×(?3)2
=-8×16-
×16+
×9
=-108-4+4
=-108.
1 |
4 |
1 |
2 |
1 |
8 |
3 |
4 |
1 |
3 |
=
1 |
4 |
1 |
8 |
1 |
8 |
3 |
4 |
1 |
3 |
=-2-17+90-32
=39;
(2)?8×(?2)4?(?
1 |
2 |
4 |
9 |
=-8×16-
1 |
4 |
4 |
9 |
=-108-4+4
=-108.
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