题目内容
计算:(1)﹣23+(+58)﹣(﹣5)
(2)
(3)
(4)﹣125÷(﹣25)﹣64÷(﹣4)
(5)
(6)
(2)
(3)
(4)﹣125÷(﹣25)﹣64÷(﹣4)
(5)
(6)
解:(1)﹣23+(+58)﹣(﹣5)
=﹣23+58+5
=﹣23+63
=40;
(2)
=﹣4.75+4.75+7.4+2.6
=10;
(3)
=
×(﹣36)+
×(﹣36)﹣
×(﹣36)
=﹣18﹣30+21
=﹣48+21
=﹣27;
(4)﹣125÷(﹣25)﹣64÷(﹣4)
=5+16
=21;
(5)
=﹣8×8﹣8×
+8×8
=﹣64﹣1+64
=﹣1;
(6)
=﹣1﹣
×(3﹣9)
=﹣1﹣
×(﹣6)
=﹣1+1
=0.
=﹣23+58+5
=﹣23+63
=40;
(2)
=﹣4.75+4.75+7.4+2.6
=10;
(3)
=
=﹣18﹣30+21
=﹣48+21
=﹣27;
(4)﹣125÷(﹣25)﹣64÷(﹣4)
=5+16
=21;
(5)
=﹣8×8﹣8×
=﹣64﹣1+64
=﹣1;
(6)
=﹣1﹣
=﹣1﹣
=﹣1+1
=0.
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