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In this lesson, we will learn how to subtract one-digit numbers from teen numbers by first subtracting the ones to make ten and then subtracting the remaining amount.
Q1:
We can make 10 to help us subtract.
Pick the calculation that matches 1 4 − 6 .
Fill in the blank: 1 4 − 6 = .
Q2:
Mariam was asked to solve .
She wrote
Is her solution correct?
Q3:
Amira is subtracting by making 10.
Which calculation should she do first?
Which calculation should she do next?
Q4:
What is 13 take away 3?
Q5:
Fady subtracted 7 from 13 by first making 10.
Now, he wants to subtract 8 from 12.
Which number should he write in the blue circle?
Which number should he write in the red circle?
What is ?
Q6:
Sarah was asked to solve 1 5 − 8 .
Q7:
Yara wants to find .
What number should she write in both boxes?
Q8:
We know that 5 + 7 = 1 2 .
What is 1 2 − 7 ?
Q9:
What is 16 take away 7?
Q10:
Look at how Adam made 10 to help him subtract.
Use his method to find the answer.
Help him finish this new calculation.
What should he do next to find ?
Find the answer.
Q11:
Fill in all the missing numbers.
Q12:
Choose the two numbers that make the equation true.
Q13:
Fill in the blank: 1 6 − 5 = + 1 .
Q14:
Ramy tried to solve by using the facts about making 10, but he got the answer wrong.
His teacher circled the mistake in his answer. Help him by finding .
Q15:
Adam started with 16.
He took away 6 to make 10, then took away 2 more.
Pick a calculation that is the same as what Fares did.
Q16:
Sameh tried to solve by using the facts about making 10, but he got the answer wrong.
Q17:
Which subtraction sentence is equal to 1 8 − 9 ?
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