Represent addition and subtraction of tens and ones with equations

Maths

In this unit pupils will compare two 2-digit numbers and partition a 2-digit number into 10s and 1s and position on a number line. In the future unit pupils will find a 2-digit number and a 1 or 2-digit number that compose 100.  Pupils will position 3-digit numbers on a number line and estimate the position of 3-digit numbers on unmarked number lines. They will compare and order 3 digit numbers.

In the prior unit pupils explained that items could be compared using length and height, weight/mass and volume/capacity. They compared sets of objects using equality/inequality symbols. In this unit pupils will compare two 2-digit numbers and partition a 2-digit number into 10s and 1s and position on a number line.

Comparing, ordering and partitioning 2-digit numbers

Which of the following equations are represented in this part-part-whole model?

Which part-part-whole model represents 50 + 6 = ?

What is the missing number in the sentence? There are ___ tens, which is 30, and 9 ones, which is 9      There is 39 altogether.

Which of the following completes the equation correctly.

Match the equation to the correct missing number.

Match each number to the number that has an equal value.

Which bar model shows 47 partitioned correctly?

Lucas has some 10 p and some 1 p coins in his pocket. Altogether, he has 52 p in his pocket. How many of each coin does he have?

What is the missing part in the part-part-whole model?

69 has been partitioned into tens and ones. What is the missing number?
69 can be partitioned into ___ and 9

Izzy wants to buy the ball. She already has two 1 p coins. Which of the following shows how much more money she will need to buy the ball?

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