直接写出得数．
30×6=
760﹣300=
22×40=
140×7=
420÷30= 560+80= 99×0×8= 4×6×5=
直接写得数．
+
=
+=
+
=
﹣
=
+
=
0.4+
=
﹣
=
﹣
=
+
=+
=
直接写出得数．
= 5﹣
=
= 0.5×0.5÷5=
=
﹣
=
= 0.4×25﹣10=
=
﹣
=
1+
=
=
直接写出得数：
+
=
﹣= 0.2+1.8= 0.9﹣0.27=
1.9×4×0.5=
﹣×
=
+
+
+
= 12.56÷3.14=
直接写出得数．
50×6= 90÷3=25×4= 36÷3= 54÷9=
4×600= 96÷4= 24×5= 102×7= 84÷6=
42×2= 72÷3= 150×0= 80×6= 69÷3=
250×4=
=
=
=
=
直接写出得数．
20×4= 400×3= 5×0= 5+0= 0+0=
+
=
1﹣
=
﹣
= 54÷9= 8×3+1=
+
=