Subtraction in Input-Output Tables

The video tutorial introduces subtraction, explaining it as taking away or reducing. It provides examples using sticks to demonstrate subtraction, such as five minus three and twelve minus nine. The tutorial then explains input-output tables, focusing on a rule of subtracting two from numbers in the input column. The video concludes with a brief mention of future lessons and suggested activities for practice.

What is the primary concept of subtraction as introduced in the lesson?

• Taking away or removing

• Adding numbers together

• Multiplying numbers

• Dividing numbers

In the example of five minus three, how many sticks are left after subtraction?

• One stick

• Four sticks

• Two sticks

• Three sticks

What is the result of five minus three?

• One

• Two

• Three

• Four

In the example of twelve minus nine, how many sticks are left after subtraction?

• Three sticks

• Two sticks

• Four sticks

• One stick

What is the result of twelve minus nine?

• Two

• Three

• One

• Four

What is the rule used in the input and output table?

• Add two

• Divide by two

• Subtract two

• Multiply by two

What is the result of subtracting two from three in the input-output table?

• Four

• One

• Two

• Three

What is the result of subtracting two from six in the input-output table?

• Two

• Four

• Five

• Three

What is the result of subtracting two from nine in the input-output table?

• Five

• Six

• Seven

• Eight

What is the result of subtracting two from twelve in the input-output table?

• Eight

• Nine

• Ten

• Eleven