计算(1)0.5+(- 1 4 )-2.75+(- 1 2 )(2)10÷[ 1 2 -(-1+1
计算(1)0.5+(-14)-2.75+(-12)(2)10÷[12-(-1+113)]×6(3)-32÷(-3)2+3×(-2)+|-4|(4)-13-(1-0.5)×...
计算(1)0.5+(- 1 4 )-2.75+(- 1 2 )(2)10÷[ 1 2 -(-1+1 1 3 )]×6(3)-3 2 ÷(-3) 2 +3×(-2)+|-4|(4)-1 3 -(1-0.5)× 1 3 × [3-(-3) 2 ](5)-7×(- 22 7 )+19×(- 22 7 )-5×(- 22 7 )(6)-99 16 17 ×34.
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(1)原式=0.5-
=0.5-
=0-3 =-3; (2)原式=10÷[
=10×6×6 =360; (3)原式=-9÷9-6+4 =-1-6+4 =-7+4 =-3; (4)原式=-1-
=1-
=1+1 =2; (5)原式=(-7+19-5)×(-
=7×(-
=-22; (6)(-100+
=-100×34+
=-3400+2 =-3398. |
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