3 Questions
What is the unknown number if 135 is added to 267?
402
If a number is subtracted from 456 and the result is 298, what is the number?
158
If you add 378 to an unknown number and the result is 593, what is the unknown number?
215
Study Notes
Solving Unknown Numbers
- 135 is added to an unknown number to get 267, implying the unknown number is 267 - 135 = 132.
- An unknown number is subtracted from 456 to get 298, implying the unknown number is 456 - 298 = 158.
- 378 is added to an unknown number to get 593, implying the unknown number is 593 - 378 = 215.
This quiz challenges your skills in solving for unknown numbers by performing addition and subtraction with 3 and 2 digit numbers. It presents three different scenarios where an unknown number needs to be found through addition and subtraction operations.
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