□+□=□
4+5 2+7 4+2 2+4 7-7 7-0
9-38-4 7+32+6 0+66+3
4+=9 -6=2 -5=5
8- =5 10=+3 7-=4
问题:
算式:
答:
905﹣260= =
= =
1.25×2.5×32= 8÷0.01=
808÷88≈ 697+296≈