Complete the subtraction sentence – up to 18
key notes :
💡 Subtraction is taking one number away from another.
A subtraction number sentence is an equation that shows a number being subtracted from another number with a final answer.
Learn with an example
Fill in the missing number.🤔
12 – ___ = 5
Find the number that makes the subtraction number sentence true.
12 – ? = 5
Subtract 5 from both sides:
12 – ? – 5 = 5 – 5
7 – ? = 0
Now, find the number that goes in the blank space. Remember, when a number is subtracted from itself, the difference is zero. The number in the blank space must be 7.
The missing number is 7.🚀
Fill in the missing number.🤔
__ – 1 =16
Find the number that makes the subtraction number sentence true.
? – 1 = 16
Add 1 to both sides:
? – 1 + 1 = 16 + 1
? = 17
The missing number is 17.🚀
Fill in the missing number.
____ – 2 = 10
Find the number that makes the subtraction number sentence true.
? – 2 = 10
Add 2 to both sides:
? – 2 + 2 = 10 + 2
? = 12
The missing number is 12.
Let’s practice!🖊️
