直接写出得数
410﹣210=
= 72.8÷0.8=
=
1.375﹣
=
=
= 5.2+0.54+0.46=
口算．
800﹣250= 30×40= 8100÷900= 10﹣0.98= 105÷7= 560+770=
0.25×0.4= 6.3÷0.07= 0.64÷8= 8.85×10= 4.73+0.7=
=
=
=
= 3.6×
= 8×1.36×1.25= 7.2×2.8+2.8×0.8=
直接写得数．
1﹣0.57= 12.5×16= 14÷21= 5﹣1.47﹣2.53=
÷
=
﹣
=
×0.2=
÷×3=
甲数是12的
，乙数的是12，甲、乙两数的和是多少？
直接写得数．
①91+19=②3.2×
=③
+75%=
④
×
=⑤
÷8=⑥4
﹣
=