Don't Subtract Add

We were learning to add numbers while subtracting.

Complete the answers below. Remember to show your thinking

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

1. 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+36=75 so 75-39=63  ✔

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

57+3=60

40+80=120

90+3=93

50+7=57

=36 ✔

3. 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?

93-36=36✔

4. Sam has $110 and spends $89 on some playstation games he wanted. How much money does he have left? 110-89= 21 ✔
5. I start shopping with $64 and come home with $38. How much did I spend when I was out shopping?  64-38=24✔

6. I wanted to collect $100 for charity, but only managed to get $82. How much less than $100 is that? 100-82=18✔

The hard part for me was not being able to use the number line to help me answer the question. 7✔