来自石世宏的问题
2.881÷0.43-3.5×0.24;(86.9+667.6)÷50.3;0.125×8-0.025×40;30.8÷[14-(9.85+1.07)].
2.881÷0.43-3.5×0.24; (86.9+667.6)÷50.3;
0.125×8-0.025×40; 30.8÷[14-(9.85+1.07)].
1回答
2020-07-15 21:24
2.881÷0.43-3.5×0.24;(86.9+667.6)÷50.3;0.125×8-0.025×40;30.8÷[14-(9.85+1.07)].
2.881÷0.43-3.5×0.24; (86.9+667.6)÷50.3;
0.125×8-0.025×40; 30.8÷[14-(9.85+1.07)].
(1)2.881÷0.43-3.5×0.24=6.7-0.84=5.86;(2)(86.9+667.6)÷50.3=754.5÷50.3=15;(3)0.125×8-0.025×40=1-1=0;(4)30.8÷[14-(9.85+1.07)]=30.8÷[14-10.92]=30.8÷3.08=10.