Determine the numerical value of the
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Determine the numerical value of the
To solve the problem, we will determine the value of in the equation .
Here are the steps:
Thus, the numerical value of the triangle symbol is .
Therefore, the solution to the problem is .
If we have 67 blocks in total, how many blocks will remain if we remove 5 tens and 4 ones?
Because subtraction is the inverse of addition! When you have , you need to 'undo' the addition of 5 by subtracting it from both sides.
The triangle is just a placeholder for an unknown number, like using x or y in algebra. It represents the missing value we need to find.
Yes! You can think: 'What number do I add to 5 to get 10?' Count up: 5, 6, 7, 8, 9, 10. That's 5 more steps, so .
Simply substitute your answer back into the original equation. Replace with 5: . Since this is true, your answer is correct!
If substituting gives you a false statement, your answer is wrong. Go back and check your arithmetic - you might have added instead of subtracted, or made a calculation error.
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