3×4=6× 5×=40﹣5
16=2×=4× 36﹣=28
45÷=9 64÷=8 ÷5=7
×7=21 4×=32 7×=63
42÷724÷4 40÷854÷9 63÷963÷7
48÷642÷6 64÷849÷7 36÷935÷7
8×6= 8×8= 9×9= 72+5-30=
5×5= 9+17= 5×9= 8×7-12=
90-6= 7×6= 3×8= 8×5+19=