Subtraction without Regrouping

Mr. Adit teaches how to subtract multi-digit numbers without regrouping. He explains the importance of checking subtraction with addition and demonstrates this through examples. The video covers two-digit and three-digit subtraction problems, emphasizing the need to verify results and correct errors if necessary.

What is the term for the number from which another number is subtracted?

• Subtrahend

• Minuend

• Sum

• Difference

In the example given, what is the result of subtracting 45 from 78?

• 43

• 35

• 23

• 33

How can you verify the result of a subtraction problem?

• By multiplying the numbers

• By adding the difference to the subtrahend

• By subtracting the minuend from the subtrahend

• By dividing the difference by the minuend

What is the difference when you subtract 317 from 548?

• 231

• 321

• 312

• 213

In the three-digit subtraction example, what is the sum when you add the difference to the subtrahend?

• 548

• 584

• 458

• 485

What was the error in the final subtraction example?

• Incorrect subtraction in the tens column

• Incorrect addition during verification

• Incorrect subtraction in the hundreds column

• Incorrect subtraction in the ones column

What should you do if your subtraction result does not match the original minuend when checked with addition?

• Multiply the numbers

• Ignore the result

• Recheck the subtraction steps

• Change the subtrahend