Hello Year 1 Happy Friday Today is Friday

Hello Year 1. Happy Friday! Today is Friday 15 th May. We are going to be learning to calculate totals using repeated addition.

Mental Maths Warm-Up Can you remember how to count in time intervals of quarter hours? Quarter of an hour is 15 minutes. Start from 9 o’clock… Quarter past 9… Try on you own starting from Half past 9… 2 o’clock. Quarter to 10… 10 o’ clock… Quarter past 10… Try again starting from Half past 10… 5 o’clock. Quarter to 11… 11 o’clock

Repeated addition + + Let’s count in fives from 0 to 20. 5, 10, 15, 20. How many fives did we count? So… 5 + 5 + 5 = 20 So… we say 4 fives are 20. So… 5 x 4 = 20 x

Repeated addition + + Now let’s count in 2’s to 10. 2, 4, 6, 8, 10 How many two’s did we count? So… 2 + 2 + 2 = 10 So… we say 5 two’s are 10. So… 2 x 5 = 10 x

Repeated addition can be written as a multiplication sentence. So…if we count in tens to 50. 10, 20, 30, 40, 50 How many tens did we count? So… 10 + 10 = 50 So. . . we say 5 tens are 50 So… 10 x 5 = 50

Repeated addition and multiplication Level 1 Level 2 Level 3 2+2= 2 x 2= 2+2+2+2= 2 x 4= 2+2+2= 2 x 3= 5+5+5= 5 x 3= 2+2+2+2= 2 x 4 = 5+5+5+5= 5 x 4= 2+2+2= 2 x 5= 5+5+5+5+5= 5 x 5= 10 + 10 + 10 = 10 x 4 = 10 + 10 = 10 x 5 Miss Harding thinks 4 fives are 25. Is she correct?

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.