Don't subtract add

1. Moana has $81 and she gives her friend $18. How much money does Moana have left?

18 + 2 = 20

20 + 60 = 80

80 + 1 = 81

       18 + 63 = 81 so 81 - 18 = 63

2. Jake collected $75 from his pocket money to buy a present for his mum. The present only costs $39 so how much change does he have?

39 + 1 = 40

40 + 30 = 70

70 + 5 = 75

39 + 46 = 75 so 75 - 39 = 46

3. Dad takes $93 with him to the fair. He comes back with $57. How much did he spend?

     57 + 3 = 80

            80 + 10 = 90

           90 + 3 = 93

             57 + 46 = 93 so 93 - 57 = 46

4. At the park the lolly seller has collected in $103.

  She has to pay $88 out for buying lollies for the next   day. How much money does she have left

88 + 2 = 90

            90 + 10 = 100

             100 + 3 = 103

    88 + 25 = 103 so 103 - 88 = 25

5. Sam has $110 and spends $89 on some PlayStation games he wanted. How much money does he have left?  
   89 + 1 = 90    90 + 10 =100

            100 + 10 =110

89 + 21 = 110 so 89 - 110 = 21

6. I start shopping with $64 and come home with $38. How much did I spend when I was out shopping?

38 + 2 = 40

           40 + 20 = 60

           60 + 4 = 64

38 + 36 = 64 so 64 - 38 = 36

7. I wanted to collect $100 for charity, but only managed to get $82. How much less than $100 is that?

               82 + 8 = 90

        90 + 10 = 100

             100 + 0 = 100

82 + 22 = 100 so 100 - 82 = 22