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计算题:(1)0.5%(+3 )+3.75%(+7 )(2) (...

(1)原式=(23+3)+[(-37)+(-52)]=26+(-89)=-63;(2)原式=118×24+73×24-154×24=33+56-90=-1;(3)原式=9-60×14×110+2=9-32-20=-12.5;(4)原式=-16×(-278)×14+(-4)×(-38)=272+32=15

=(-1又1/2-4又1/2)+(3又1/4+3又3/4)=(-6)+7=1

(1)原式=(23+3)+[(-37)+(-52)]=26+(-89)=-63;(2)原式= 11 8 ×24+ 7 3 ×24- 15 4 ×24=33+56-90=-1;(3)原式=9-60× 1 4 × 1 10 +2=9- 3 2 -20=-12.5;(4)原式=-16×(- 27 8 )× 1 4 +(-4)×(- 3 8 )= 27 2 + 3 2 =15

(1) 5 6 -(0.375×45+1÷3.75÷1.6)÷0.4,= 5 6 -(16 7 8 + 1 6 )÷0.4,= 5 6 -(16 7 8 + 1 6 )÷0.4,= 5 6 -19 1 24 ÷ 2 5 ,=- 2025 48 ;(2)(7 5 18 -6 5 11 )÷[2 14 15 +(4-2 14 25 )÷1.35],= 163 198 ÷[2 14 15 +1 11 25 ÷1.3...

4-[3.75×(1.2-1/3)+3/4] =4-[3.75×(6/5-1/3)+3/4] =4-15/4×(18-5)/15-3/4 =4-15/4×13/15-3/4 =4-13/4-3/4 =4-4 =0

题干不清晰

=(1.3+3.7)+(4.25+3.75) =5+8 =13

信任

9.875-(3又8分之7-75%)+3又4分之1 =9.875-3又8分之7+75%+3又4分之1 =6+4 =10

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