Which expression is equivalent to the given equation?
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Which expression is equivalent to the given equation?
To solve this problem, we will find an expression equivalent to by decomposing the operation into smaller steps:
Now, let's verify by performing the operations manually:
This confirms that results in , the same as .
Therefore, the expression equivalent to is .
Add fifty units to the number 31.
What is the resulting number?
Breaking 8 into 2 and 6 makes mental math easier! You can quickly subtract 2 from 92 to get 90, then subtract 6 to get 84. Other combinations like 3 + 5 or 4 + 4 work too.
Yes! You could write it as , but breaking the smaller number is usually easier for mental calculation.
Choose a breakdown that makes calculation easier. Look for combinations that create round numbers like 90, 100, or numbers you can subtract quickly in your head.
With subtraction, order matters! works left to right: first subtract 2, then subtract 6. Don't change the order of operations.
Always check that your broken parts add up! If you're breaking 8, make sure your parts equal 8: 2 + 6 = 8 ✓. If not, you'll get the wrong answer.
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