计算题(1)12-(-18)+(-7)-15(2) -64÷3 1 5 × 5 8 (3)-63÷7+45÷(-9)(
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÷3 1 5 × 5 8 (3)-63÷7+45÷(-9)(4) ( 5 12 + 2 3 - 3 4 )×(-12) (5) (- 3 5 )×(+6)×(-10)×(- 1 4 ) (6)8+(-3) 2 ×(-2)(7)(-5) 3 ×(- 3 5 )+32÷(-2 2 )×(-1 1 4 )(8)100+16÷(-2) 4 - 1 5 -|-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) (
=-
=-5-8+9 =-4; (5) (-
=-3.6+2.5 =-1.1; (6)8+(-3) 2 ×(-2) =8+9×(-2) =8-18 =-10; (7)(-5) 3 ×(-
=(-125)×(-
=75+8×
=75+10 =85; (8)100+16÷(-2) 4 -
=100+16÷16-
=100+1-
=
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