Basic Addition and Subtraction Problems

This video tutorial teaches first graders how to make numbers up to 20 using addition and subtraction. It provides examples of creating numbers 14, 15, 16, and 18 by adding and subtracting different combinations of numbers. The video emphasizes understanding various ways to achieve the same numerical result, enhancing students' flexibility in mathematical thinking.

What is the main focus of the video tutorial?

• Learning to multiply numbers

• Understanding division

• Making numbers up to 20 using addition and subtraction

• Exploring fractions

If you start with 8, how many more do you need to add to make 14?

• 6

• 8

• 4

• 10

Which three numbers can be added to make 14?

• 7, 3, 4

• 5, 5, 4

• 6, 4, 3

• 8, 2, 3

What is the result of 9 plus 5?

• 14

• 15

• 13

• 12

If you have 16, how many do you need to subtract to get 14?

• 3

• 4

• 2

• 1

What number do you add to 10 to make 18?

• 8

• 7

• 9

• 6

Which three numbers can be added to make 18?

• 7, 3, 8

• 9, 4, 5

• 6, 4, 8

• 5, 5, 8

What is the result of 9 plus 9?

• 18

• 19

• 17

• 16

If you have 19, how many do you need to subtract to get 18?

• 2

• 1

• 3

• 4

What number do you add to 9 to make 16?

• 8

• 5

• 6

• 7