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To find out which number is missing, we solve the entire exercise to know which number we will have to add to get a result of 25:
To make 6 equal to 25 we will have to add 19.
Let's verify:
\( 0:7+1= \)
Simplifying first makes the problem clearer! When you calculate 9 - 3 = 6, you get , which is much easier to solve than the original equation.
Follow the order of operations (PEMDAS)! Since there are no parentheses or exponents, work from left to right: addition and subtraction have equal priority.
Yes! You could also think: "What number plus 9 minus 3 equals 25?" or rearrange to . Both methods work!
Substitute 19 for the question mark: . Calculate step by step: ✓. Since this equals 25, your answer is correct!
That's a common mistake! If you got , then . But checking: . Always double-check your arithmetic!
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