In this activity, we will be finding the missing number in a calculation.
Example
Find the missing number in the calculation:
134 + ___ + 22 = 160
Answer
Step 1: Add together 134 + 22 = 156.
Step 2: Work out what you need to reach 160 by calculating 160 - 156 = 4
So,
134 + 4 + 22 = 160
Does that make sense?
In this activity, we are going to be number detectives and find the missing number!