Hello Year 1 How are you all today
- Slides: 8
Hello Year 1. How are you all today? Today is Wednesday 13 th May. We are going to be learning to add 2 digit numbers.
Mental Maths Warm-Up • Count forwards in 5’s. • Count backwards in 5’s. • Count forwards in 10’s. • Count backwards in 10’s. • Count forwards in 100’s to 1, 000. • Count backwards from 1, 000 to zero in 100’s.
? Mr Jones thinks that 15 + 6 = 23. Is he correct? How do you know?
? Mrs May thinks that 23 + 14 = 27. Is she correct? How do you know?
We can use rods of ten and ones to help us partition. 3 rods of ten = 30 5 ones = 5 30 + 5 = 35
Add the rods of ten, then add the ones.
Adding numbers using a hundred square. Level 1 Level 2 Make some rods of ten and ones or use a hundred square to add numbers together with totals up to 20. Make some rods of tens and Use a hundred square to add ones or use a hundred square numbers together with totals to add numbers together up to 50. with totals up to 30. 21 + 13 = 17 + 12 = 24 + 15 = 18 + 11 = 20 + 30 = 15 + 15 = 22 + 21 = 12 + 9 = 36 + 13 = 14 + 12 = 38 + 11 = 19 + 11 = 24 + 25 = 8+4= 7+6= 9+3= 12 + 4 = 14 + 5 = 16 + 4 = Level 3
Extra worksheets… • Some of you have requested more worksheets for your child to work through after the Power Point lesson. • Some additional worksheets for this week have been emailed to you via your class rep. We hope you find these useful.
