17+18= 35+35= 800+30= 600+700=
170﹣90= 520+80= 500+240= 6000﹣5000=
47+32= 720﹣700= 84﹣48= 100×（4﹣3）=
60+150= 8500﹣500= 1000﹣400= 999×0=
1200﹣500= 48+152= 33×1= 2×14=
相关试题
= 1.8×
=
÷
÷3=
﹣
=
﹣
=（
+
）×30=
÷
×
=．直接写出得数
（1）6×
=
×
=
×
×2=
+
×0=
（2）
÷
= 4.8÷
=
÷37.5%= 15%×60=
（3）16：24=
：
= 1÷（0.36+0.14）=
×
÷×=
×10=
÷
=
÷80%=
×0×
=
﹣
=
=
×
=
÷3=
﹣
）×
=
×
=
+
=
×
=
=
=
×5=
÷2=
﹣
=
= 0÷
=
×
=
+20%=
=
×12×
= 63：27=
：
=
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