650+350= 7000﹣320= 1﹣= 63÷8= 660÷3=
600×7= +
= 34÷7= 120×4= 270+90=
﹣
= 6×6+5= 740﹣700= 3200÷8=
+
=
650+350= 7000﹣320= 1﹣= 63÷8= 660÷3=
600×7= +
= 34÷7= 120×4= 270+90=
﹣
= 6×6+5= 740﹣700= 3200÷8=
+
=