小明有5个气球,后来不小心都弄掉了,他还剩多少个?□○□=□
直接写得数.0.7+0.8= 10﹣0.98= 0.5×2= 28÷0.25÷0.4=15.7+3.4=.65﹣6.5= 8÷0.5= 0.5×37.7×2= 3.7×0.5×4=0.36÷4= 0.15×0.6= (5+0.02﹣5.02)×1.9=
8.99+0.1=1﹣=5﹣5÷2.5=0、5×2.4=0.1÷0.01=0.43×(2.7+7.3)=1.206×0.8≈(得数用四舍五入法凑整到百分位)2998÷31≈(估算)
用竖式计算. 5.9+28.65﹣16.57= 4.68×0.72= 87.4÷0.38=
5.43+1.47= 5﹣3.28= 0.46÷4.6= 4×0.25=3÷0.3= 4.5×0.4= 0.63÷0.7= 1.8×0.4=9.58×101﹣9.58= 85÷(1﹣0.9)=
直接写出得数 5.43+1.47= 5﹣3.28= 0.46÷4.6= 4×0.25= 3÷0.3=4.5×0.4= 0.63÷0.7= 1.8×0.4= 9.58×101﹣9.58= 85÷(1﹣0.9)=