Solve addition problems to 20 by joining sets and counting all the objects.
Solve subtraction problems from 20 by separating sets and counting all the objects.
Number Framework Stage 2
Problem: Mitch has 7 teddy bears and he gives 3 of them to his friend. How many does Mitch now have?
Record 7 - 3 on the board. The students model 7 on fingers as 5 and 2 and discuss removing the 2 then 1 more from the 5 to solve the problem. Record 7 - 3 = 4.
Examples. Word stories and recording for: 8 . 4, 7 . 4, 4 + 3, 10 . 6, 9 . 6, 10 - , 2 + 6, 3 + 6, 7 - 6..
Challenging Problem: Fiona has $9. She buys a cake and a drink at the cafe. When she gets home she has $3 in her purse. How much did she spend at the cafe?
Record 9 - ? = 3 on the board. The students use their fingers to realise 6 is the answer. Record the answer. Examples. Word stories and recording for: 10 - ? = 2, 3 + ? = 9, 9 - ? = 2, 2 + ? = 8.