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In this lesson, we will learn how to subtract a one-digit number from a two-digit number by decomposing a ten into ones.
This is a subtraction machine.
It subtracts 7 from any number you put in.
What number will come out?
Olivia used place value blocks to show that 73 is 7 tens and 3 ones.
She wants to take away 9 from 73, but there are not enough ones.
Pick another way she could make 73 so she can take away 9 ones.
Take away 9 ones to find
A man had 30 LE and he bought
a sandwich for 8 LE. How much money does he have left?
A car park has 41 spaces. Two spaces are taken. How many are left?
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