Subtraction and Number Decomposition

The video tutorial teaches students how to decompose numbers using subtraction. The teacher guides students through breaking down numbers into tens and ones, subtracting each part separately, and then combining the results to find the final answer. The lesson emphasizes understanding the value of each digit and using symbols correctly.

What is the first step in decomposing numbers for subtraction?

• Write the numbers vertically

• Write the numbers horizontally

• Multiply the numbers

• Add the numbers

How many tens are there in the number 86?

• 6

• 8

• 86

• 80

What is the value of the ones place in the number 43?

• 43

• 40

• 3

• 4

What operation do we perform after breaking down the numbers?

• Add the tens and subtract the ones

• Subtract the tens and add the ones

• Multiply the tens and divide the ones

• Subtract the tens and subtract the ones

What is 80 minus 40?

• 30

• 40

• 50

• 60

What is 6 minus 3?

• 4

• 1

• 2

• 3

What do you do after subtracting the tens and ones?

• Divide the results

• Multiply the results

• Add the results

• Subtract the results

What is the final answer for 86 minus 43?

• 53

• 43

• 63

• 33

What should you do after solving the problem?

• Check your work

• Erase your work

• Ignore your work

• Redo your work