10×5= 30×6= 700×7= 24﹣6= 64÷8=
87÷9= 28÷3= 6×4+6= 7×8+4= 4×3+2=
5×4+7= 7×2+9= 
+= 
﹣
= 1﹣
=
﹣= 198×6≈ 27×5≈ 52×4≈ 78×2≈
相关试题
= 8﹣
= 2.5×6.7×4=
=
+
×（8+5）×
=
=
÷12=
×
= 0×
=
=
×
=5÷
=
÷
=
÷
=（
+
）×16= 0.8×1.5=
﹣1÷3=
直接写出得数．
10÷0.01= 8×（1﹣0.75）= 11﹣1
﹣2.125= 0.045×
=
5÷
÷4= 1÷8﹣1÷8= 9.98﹣（2.98+1.2）= 7
﹣（1﹣0.5）=
= 352+198=
+
=
×
=
= 0.7：0.25=
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