Addition
Addition
How can we progress with addition? Can we count objects to find out how many there are altogether? Lisa has 5 cars and Tim has 2 cars. How many cars do they have altogether?
Can we use numbered lines to help count on for addition? 7 + 4 = 11
0 1 2 3
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
We can use a number line to work out 8 + 7 = 15 +5
+2
8
10
15
What if it was a harder addition question? 48 + 36 = 84 +30
+2
48
+4
50
80
84
We can even use a number line to work out missing values: 3 +
9
= 12
+7
0 1 2 3
or
12 = +2
9
+ 3
=9
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Can we partition a number to answer an addition question? 35 + 47 = 82 30 + 40 = 70 5 + 7 = 12
3 0 + 4 0 = 7 0 5 + 7 = 1 2 7 0 + 1 2 = 8 2
Can we partition a number and place our workings in columns to answer an addition question?
35 + 47
4 7 + 7 6
4 0 + 7 0 1 1 0
70 + 12 =82
7 6 1 3
=123
Can we put our addition questions into columns, adding the units first? The expanded vertical method:
4 + 7 1 + 1 1 1 2
7 6 3 0 3
Can we put our addition questions into the compact vertical method and carry the ones, tens, or hundreds?
4 7 + 7 6 1 2 3 1
1
2 5 8 + 8 7 3 4 5 1
1
3 6 6 + 4 5 8 8 2 4 1
1
We can cross out the tens and hundreds once we have added them on!
Can we put our addition questions into the compact vertical method with larger digits or digits with decimal places? £34.42 + £73.81 = £108.23
3 4 . 4 2 + 7 3 . 8 1 £ 1 0 8 . 2 3 1
12,367 + 1,928 = 14,295
1
Don’t forget to write what units you are working with! e.g. money could be £ or p length could be cm, m or km
1 2 3 6 7 + 1 9 2 8 1 4 2 9 5 1
1
How can we progress with addition? Can we count objects to find out how many there are altogether? Lisa has 5 cars and Tim has 2 cars. How many cars do they have altogether?
Can we use numbered lines to help count on for addition? 7 + 4 = 11
0 1 2 3
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
We can use a number line to work out 8 + 7 = 15 +5
+2
8
10
15
What if it was a harder addition question? 48 + 36 = 84 +30
+2
48
+4
50
80
84
We can even use a number line to work out missing values: 3 +
9
= 12
+7
0 1 2 3
or
12 = +2
9
+ 3
=9
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Can we partition a number to answer an addition question? 35 + 47 = 82 30 + 40 = 70 5 + 7 = 12
3 0 + 4 0 = 7 0 5 + 7 = 1 2 7 0 + 1 2 = 8 2
Can we partition a number and place our workings in columns to answer an addition question?
35 + 47
4 7 + 7 6
4 0 + 7 0 1 1 0
70 + 12 =82
7 6 1 3
=123
Can we put our addition questions into columns, adding the units first? The expanded vertical method:
4 + 7 1 + 1 1 1 2
7 6 3 0 3
Can we put our addition questions into the compact vertical method and carry the ones, tens, or hundreds?
4 7 + 7 6 1 2 3 1
1
2 5 8 + 8 7 3 4 5 1
1
3 6 6 + 4 5 8 8 2 4 1
1
We can cross out the tens and hundreds once we have added them on!
Can we put our addition questions into the compact vertical method with larger digits or digits with decimal places? £34.42 + £73.81 = £108.23
3 4 . 4 2 + 7 3 . 8 1 £ 1 0 8 . 2 3 1
12,367 + 1,928 = 14,295
1
Don’t forget to write what units you are working with! e.g. money could be £ or p length could be cm, m or km
1 2 3 6 7 + 1 9 2 8 1 4 2 9 5 1
1
