Subtraction Concepts and Techniques

The video tutorial explains how to solve the subtraction problem 2157 minus 872 by arranging the numbers vertically and aligning the place values. It demonstrates the subtraction process from right to left, starting with the ones, then the tens, hundreds, and thousands. The tutorial highlights the need for borrowing when a smaller number is subtracted from a larger one in a higher place value, ensuring consistency in the subtraction process. The final result of the subtraction is 1285.

What is the first step in solving the subtraction problem 2157 minus 872?

• Estimate the result

• Write the problem horizontally

• Write the problem vertically and align place values

• Directly subtract the numbers

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CCSS.1.OA.A.1

When subtracting in the ones place, what is the result of 7 minus 2?

• 9

• 5

• 7

• 3

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CCSS.2.NBT.B.7

In the tens place, why is borrowing necessary when subtracting 5 minus 7?

• Because subtraction is not possible

• Because 5 is greater than 7

• Because 7 is greater than 5

• Because both numbers are equal

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CCSS.2.NBT.B.7

After borrowing in the tens place, what is the new value of the tens column?

• 10

• 12

• 15

• 18

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CCSS.6.NS.B.3

In the hundreds place, what is the result of 10 minus 8 after borrowing from the thousands place?

• 3

• 4

• 2

• 1

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is the final result of the subtraction 2157 minus 872?

• 1350

• 1500

• 1420

• 1285

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2