56÷4=92÷3=★96÷6=★83÷4=
简算 299÷(299+) 4×0.8×2.5×12.5 84×0.375+105×.
简算 5.61﹣+4.39﹣13.74×5.8+62.6×0.58 (﹣)+(﹣)+(﹣)+(﹣)+(﹣)
6﹣(3.625﹣2)﹣4.
灵活计算下面各题 1.25×0.32×250 ﹣÷﹣×200986×(﹣)×3.
34.5×9.23﹣34.5+1.77×34.5.