Year 1s - This week we are building on the work you did on Friday working out how many are left (subtraction).
Open up the Powerpoint to down load and print off the questions for you to work through today.
This week we are building on the work we did last week using number bonds to 10.
Y2 12.10.20 WALT add 3 single digit numbers (with a focus on spotting numbers that make 10)
Today we are using dots and numicon to visually help us see the numbers. We then need to add up those numbers to make 10 first, then we can see what's remaining.
So to make 16 we should aim to make 10 first. which 2 numbers here make 10? (9+1) now we have 10 we need to make the remaining 6.
Try to think in this way as you answer the questions for today. Borrow the dots from another number to make your 10 then see what's left.
9.10.2020 - Year 1 WALT Calculate how many left by crossing out.
Today we would like you to have a go at completing the subtraction sentences. Can you represent these using counters or objects? Show the subtraction as a 'take away' by crossing out the objects / pictures. Work through the slides on the powerpoint below.
Purple for push: Use counters or objects to calculate subtractions with bigger numbers:
16 - 5 = ___
___ = 14 - 8
19 - 6 = ___
What about this?... 12 - ___ = 5
9.10.2020 - Year 2 WALT Recall and use addition facts to 10 to help calculate additions to make 100.
Today we are going to use our work on 'bonds to 10' and our wok on place value (tens and ones with Base Ten) to help us work out how to make 100. We would like you to be able to calculate how much you need to add to a number to make 100. Let's have a try together:
So, if we have 67, how many more to get to 100?
67 + ?? = 100
First look at the ones. How many more to the next ten? 7 + ?? = 10.
Let's draw it.
That would now mean we have 70.
Now, how many more tens to 100? (You can draw the tens, or count on from 70 - "70, 80, 90, 100")
Do you notice the 'new' ten in red? Don't forget that we now have 7 tens.... We need to add 3 more tens to make 100 because 100 is the same as 10 tens.
Finally, we need to calculate how many we have added. We added the 3 ones to start, then the 3 tens. 3 ones and 3 tens is 33.
Now your turn! Have a go at the questions on the slides on the powerpoint below.
8.10.2020 - Year 1 WALT Calculate how many are left.
Today we would like you to find out how many are left. We will practise this by telling a story. Work through the 'How Many Left' powerpoint with an adult.
Purple for push: Can you make up your own story using numbers up to 20? You could use something in your house.
e.g. I need to climb 16 stairs to get to bed. So far I have climbed 12. How many do I have left to climb?
12 + ?? = 16. Would you subtract (take away) 12 from 16 (16-12 = ??), or would you count on (12,13,14, 15, 16)
8.10.2020 - Year 2 WALT Add two 2-digit numbers using part-whole models.
Today, we would like you to practise adding two numbers by drawing the Base 10 in part-whole models. See the example below:
45 + 37 = 82
Can you see how I have added the ones to make ten, then I have 2 ones left over. I have made sure I have remembered to add the 'new' ten to the total in the 'whole' at the top.
Now you have a go with these. Print off the part-whole model sheet, or draw them for yourself.
a) 18 + 54 = ____
b) 66 + 27 = ____
c) 39 + 22 = ____
d) 28 + 56 = ____
e) ____ = 49 + 17
7.10.20 Year 1 WALT Find a part using part whole models
This is a practical lesson today which means you will need some counters or match sticks or pebbles that you can use. Down load and print off the work sheet below (or draw a similar one) then practice changing the whole number at the top with numbers between 1 and 20. The children then need to practice finding one of the missing parts when one number below is given. E.G if 13 was at the top (the whole number) and 6 is in one of the parts how could we work out the other number?
13-6=? or 6+?=13
7.10.20 Year 2 WALT add two 2 digit numbers