Subtraction Strategies and Techniques

The video tutorial covers various methods of subtraction, including using tens and ones models, a hundred chart, mental math, and pencil-paper techniques. It emphasizes the importance of choosing the appropriate method based on the problem's complexity. The tutorial also includes problem-solving exercises to ensure understanding and concludes with a preview of the next lesson on the relationship between addition and subtraction.

Which of the following is NOT a method mentioned for subtraction?

• Tens and ones models

• Hundred board

• Mental math

• Multiplication table

When using tens and ones models, what do you do if the number you are subtracting is larger than the ones digit?

• Skip the problem

• Add more ones

• Use a hundred chart

• Regroup the tens

In the example of 35 minus 8, how many ones are left after regrouping?

• Five

• Six

• Seven

• Eight

What is the result of 83 minus 30 using a hundred chart?

• 53

• 63

• 83

• 73

Which method is suggested for solving 52 minus 20?

• Tens and ones models

• Mental math

• Pencil and paper

• Using a calculator

What is the final answer for 52 minus 20 using a hundred chart?

• 42

• 52

• 32

• 22

Why is a hundred chart not suitable for 44 minus 18?

• It involves regrouping

• It doesn't involve even tens

• It requires mental math

• It is too complex

After using tens and ones models for 44 minus 18, what is the result?

• 30

• 28

• 26

• 24

What is the first step in solving 61 minus 5 using pencil and paper?

• Subtract directly

• Regroup the tens

• Use mental math

• Use a hundred chart

What is the final answer for 61 minus 5 using pencil and paper?

• 58

• 57

• 56

• 55