836+164= 351﹣42= 25×4= 72÷8=
0×123=
﹣
= 1﹣
= 5×7+5=
16÷4﹣4= 8﹣6÷2=
5.6÷0.7= 8109÷9= 1﹣35%= 2×
÷2×
=
+
=
÷25%= 3.05+6.2= 9.8﹣0.98=
计算.
﹣50% 60%×
1﹣
÷5
+
﹣
﹣
÷90%
﹣12.5% 48%×
25%÷
直接写得数．
+
=
×3.6= 2.4﹣1
= 12
÷3=
23﹣2.03﹣2.003=（64+
）×
= 3.6÷0.36=
×4÷
×4=
1
﹣
﹣
=（
﹣
）×30=
直接写得数
30﹣19.02= 1﹣0.94+0.06= 3.125+1
= 1×5÷
×=
1÷0.1﹣1×0.1= 12×3.14﹣6.28=
++
=
×0.25+3=