
计算:(1)4×(-3)2-5×(-2)+6 &...
计算:(1)4×(-3)2-5×(-2)+6(2)(-2)2×7-(-3)×6-|-5|(3)-3×(-4)+(-2)3÷(-2)2-(-1)101(4)-14+[4-(...
计算:(1)4×(-3)2-5×(-2)+6 (2)(-2)2×7-(-3)×6-|-5|(3)-3×(-4)+(-2)3÷(-2)2-(-1)101 (4)-14+[4-(38+16-34)×24]÷5.
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(1)原式=4×9+10+6
=36+10+6
=52;
(2)原式=4×7-(-18)-5
=28+18-5
=41;
(3)原式=12+(-8)÷4-(-1)
=12-2+1
=11;
(4)原式=-1+[4-(
×24+
×24-
×24)]÷5
=-1+[4-(-5)]÷5
=-1+
=
.
=36+10+6
=52;
(2)原式=4×7-(-18)-5
=28+18-5
=41;
(3)原式=12+(-8)÷4-(-1)
=12-2+1
=11;
(4)原式=-1+[4-(
3 |
8 |
1 |
6 |
3 |
4 |
=-1+[4-(-5)]÷5
=-1+
9 |
5 |
=
4 |
5 |
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