## Addition Up To 20.

I am learning to use addition strategies to solve problems with numbers up to 20.

I know I can do it when I have used my mental strategies to solve some addition problems.

To complete today’s task you will need some cards numbered 1-20. You can create your own or use the ones attached below.

### Independent Task

Using your 1-20 cards, shuffle them and place them face down on the floor.

Flip over two random cards and add the numbers together using your favourite addition strategy.

Record the problems that you have solved in your Maths book. Try to solve at least 5 different problems.

### Adjusting This Task For You!

If you are finding this task a bit too tricky, use the cards from 1-12.

If you want to challenge yourself with this task, create some cards that are even larger than 20…maybe up to 30 or even 50!

## Addition Using Number Lines

Yesterday we used the counting on strategy to solve addition sums. Today we are going to apply that strategy by using number lines.

Watch the video below to learn more about addition using number lines. ↓↓↓

### Independent Task

Use this number line. ↓↓↓

Using the number line, have a go at completing the task cards attached below. ↓↓↓

### Extension

Have a go at creating some of your own worded problems in your book.

## Addition Using Counting On

I am learning to use the counting on strategy to solve addition problems.

I know I can do it when I am counting on from the biggest number.

This week we are looking at solving addition sums, focusing on counting on from the largest number. This strategy allows us to count a collection of objects much quicker.

Watch the video below to learn more about counting on. ↓↓↓

### Independent Task

To complete today’s task, you will need some playing cards or two dice. If you don’t have any, follow this link for some online dice.

Using cards:

• Remove all of the picture cards and the 10s from your deck so that you only have Aces through to 9s.
• Choose two cards from your deck (eg. 3, 4).
• starting from the biggest number, use the counting on strategy to work out the total of the two cards added together (4+3=7).
• In your maths book, write down the addition problem that you have solved.

Using dice:

• Roll two dice (10 sided if you have them)
• starting from the biggest number, use the counting on strategy to work out the total of the two dice added together (4+3=7).
• In your maths book, write down the addition problem that you have solved.

Repeat this process at least 5 times.

### Extension

If you wish to challenge yourself, you could try to use mental strategies to add 2-digit numbers.