2+3=            2-2=            4-2=            2+0=

4-3=            3+2=            2+2=            5-2=

0+3=            5-3=            2-0=            3-2=

5-1=            3+1=            2-1=            2+1=

答：一共采了（ ）个蘑菇。

9－1＝                    3＋4＝                    0＋6＝                    10－4＋3＝

7－5＝                    4＋3＝                    8－6＝                    9－4－3＝

5－5＝                    7－2＝                    3＋6＝                    9＋1－8＝