Any of the numbers that are added together.

Not wasting time or effort. An efficient strategy is one we can carry out easily.

Add three addends efficiently by finding two addends that total 10

Maths

In this unit pupils will add 3 addends. They will use a strategy such as finding 2 addends to total 10 or 2 numbers to bridge though 10.  In the future unit pupils will add and subtract 1s and 10s from 2 digit numbers. They will use number facts to add/subtract a single-digit number to/from a 2-digit number .They will use a part-part-whole model to represent addition and subtraction.

In the prior unit pupils revisited addition and subtraction within ten. They consolidated addition and subtraction strategies. In this unit pupils will add 3 addends. They will use a strategy such as finding 2 addends to total 10 or 2 numbers to bridge though 10.

Calculating within 20

Which expressions include two addends that are a number pair to 10?

Which two addends are a number pair to 10?

Look at this equation and complete the stem sentence.
5 + 5 is equal to 10, then 10 + 4 is equal to {{ }}

Look at the part-part-whole model.
Say the stem sentence aloud to find the sum
___ add ___ is equal to 10, then 10 add ___ is equal to {{ }}

Match each double fact to the correct answer.

Find the sum of the three addends and compare this to 10

Finding the total of the first two addends.

Which step has been taken in solving this equation?

Solve this equation using an efficient strategy.
1 + 4 + 5 = {{ }} 

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