This Math quiz is called 'Use Addition to Check Subtraction - Counting on from any Given Number' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is a fun way to learn if you are in the 1st or 2nd grade - aged 6 to 8.
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Recognizing that addition is the inverse, or opposite, of subtraction is useful when it comes to checking answers. For example, realizing that 13 - 8 = 5 could be checked by adding 8 + 5 to give 13 means that subtraction calculation answers can be accurately checked.
Use this quiz the practice checking subtractions with addition.
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Adding the two smaller numbers should total the larger number
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If adding the two smaller numbers does not give the larger number as their total, something has gone wrong!
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Adding the two smaller numbers should give the larger one
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If you had 33 pennies and took 20 away (leaving 13), putting them all back again (13 + 20) would result in 33 pennies again
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The answer to a subtraction cannot be larger than the number at the beginning!
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The two smaller numbers do not add to total the larger one
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The two smaller numbers do not add to total the larger one
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Adding 4 groups of 10 to 38 gives the starting number of 78
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The two smaller numbers add to give 67
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The two smaller numbers do not add to give the larger number, so the original calculation is incorrect
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