19.75-(1.75×8/13+1又3/4×5/13)
1个回答
19.75-(1.75×8/13+1又3/4×5/13)
=19.75-(1.75×8/13+1.75×5/13)
=19.75-(8/13+5/13)×1.75
=19.75-1×1.75
=18
相关问题
19.75-(1.75×8分之13+1又3分之4×5分之13)=?请简便计算~
19.75-(1.75*13分之8+1又4分之3*13分之5
1/15÷3.25+8/13× 4/15+4/13÷3.75
填空:1/7×()=()÷1/13=0.875×()=()×75%=13又9/26-()=1
简便计算:7/8×(1-75%)+1/4+0.25×1/2 49.5×13.5+50.5×13-0.5×49.5
(1)(?134)+(?213)+|?1.75|(2)13÷19×(?3)(3)(?23+34?56)×(?12)(4)
3.25×1.4= 7.28×3.2= 52.3×21= 62.5×8.3= 75.2×3.4= 13.6×1.5= 4
1/1×4+2又1/4×7+4又1/7×10+6又1/10×13+8又1/13×16+10又1/16×19
简算 (1)1又4/5×1.25+1又1/4×2.2-1又1/4 (2)13/5×8×8/13×1.25 (3)4-4/
①(+2.75)×(-11分之8)×(+13分之4)×(-1.625)