Addition and Subtraction Problems

The video tutorial demonstrates solving math problems using mental math strategies. It covers finding the missing number in equations like '73 plus blank equals 57', '94 minus blank equals 57', and '36 equals blank minus 41'. The instructor explains how to use addition and subtraction to find differences and solve these problems efficiently, often using a number line for visualization.

What is the blank in the equation 73 plus blank equals 57?

• 26

• 10

• 20

• 16

How can you reach 73 from 57 using addition?

• Add 5 then 11

• Add 3 then 13

• Add 10 then 6

• Add 16 directly

What is the sum of 57 and 16?

• 87

• 77

• 73

• 67

What is another way to find the blank in 73 plus blank equals 57?

• Add 57 to 73

• Divide 73 by 57

• Multiply 57 by 73

• Subtract 57 from 73

What is the blank in the equation 94 minus blank equals 57?

• 37

• 47

• 57

• 27

How can you solve 94 minus blank equals 57 using subtraction?

• Subtract 37 directly

• Subtract 30 then 7

• Subtract 40 then 3

• Subtract 20 then 17

What is the difference between 94 and 57?

• 47

• 37

• 57

• 27

What is the blank in the equation 36 equals blank minus 41?

• 97

• 67

• 77

• 87

How can you solve 36 equals blank minus 41 using addition?

• Add 41 to 36

• Subtract 41 from 36

• Multiply 36 by 41

• Divide 36 by 41

What is the result of adding 36 and 41?

• 77

• 67

• 87

• 97