计算题(1)12-(-18)+(-7)-15(2)?64÷315×58(3)-63÷7+45÷(-9)(4)(512+23?34)×(?12)(5)
计算题(1)12-(-18)+(-7)-15(2)?64÷315×58(3)-63÷7+45÷(-9)(4)(512+23?34)×(?12)(5)(?35)×(+6)×...
计算题(1)12-(-18)+(-7)-15(2)?64÷315×58(3)-63÷7+45÷(-9)(4)(512+23?34)×(?12)(5)(?35)×(+6)×(?10)×(?14)(6)8+(-3)2×(-2)(7)(-5)3×(-35)+32÷(-22)×(-114)(8)100+16÷(-2)4-15-|-100|
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(1)12-(-18)+(-7)-15
=12+18-7-15
=30-22
=8;
(2)
?64÷3×=-64×
×
=-12.5;
(3)-63÷7+45÷(-9)
=-9-5
=-14;
(4)
(+?)×(?12)=-
×12-
×12+
×12
=-5-8+9
=-4;
(5)
(?)×(+6)×(?10)×(?)=-3.6×2.5
=-9;
(6)8+(-3)
2×(-2)
=8+9×(-2)
=8-18
=-10;
(7)(-5)
3×(-
)+32÷(-2
2)×(-1
)
=(-125)×(-
)+32÷(-4)×(-
)
=75+8×
=75+10
=85;
(8)100+16÷(-2)
4-
-|-100|
=100+16÷16-
-100
=100+1-
-100
=
.
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