
计算:(1)-17-(-23)+(-13)-(+23)(2)(34?16?112)×12(3)42013×(14)2012÷(?2)2(4)?14?(?12
计算:(1)-17-(-23)+(-13)-(+23)(2)(34?16?112)×12(3)42013×(14)2012÷(?2)2(4)?14?(?12)2×|-5-...
计算:(1)-17-(-23)+(-13)-(+23)(2)(34?16?112)×12(3)42013×(14)2012÷(?2)2(4)?14?(?12)2×|-5-3|÷(?12)3.
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(1)原式=-17+23-13-23
=23-53
=-30;
(2)原式=9-2-1
=6;
(3)原式=(4×
)2012×4÷4
=1;
(4)原式=-1-
×8×(-8)
=-1+16
=15.
=23-53
=-30;
(2)原式=9-2-1
=6;
(3)原式=(4×
1 |
4 |
=1;
(4)原式=-1-
1 |
4 |
=-1+16
=15.
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