This video tutorial teaches how to count forward and backward from a three-digit number using number patterns. It explains the base ten place value system and demonstrates how changes in place values occur when counting. The tutorial provides examples of counting forward and backward, highlighting how place values change, and offers practical examples with specific numbers to reinforce the concepts.

What is the base of our place value system?

• Base 5

• Base 10

• Base 20

• Base 12

What happens when you add one to the number 399?

• Only the ones place changes

• Only the tens place changes

• All three places change

• Only the hundreds place changes

When counting forward from 129 to 130, which place value changes?

• Hundreds place increases

• Ones place increases

• Tens place increases

• Ones place decreases

What happens to the ones place when counting backward from 180 to 179?

• It decreases

• It stays the same

• It increases

• It becomes zero

When decreasing from 200 to 199, which place value decreases?

• All places

• Hundreds place

• Ones place

• Tens place

What is the result of adding one to 689?

• 680

• 699

• 700

• 690

How do you ungroup a thousand when counting backward from 1000?

• Into ten ones

• Into ten tens

• Into ten hundreds

• Into ten thousands

What is the result of decreasing 990 by one?

• 979

• 999

• 980

• 989

When counting forward from 728, what happens when you add two?

• The ones place increases

• The hundreds place increases

• The tens place decreases

• The ones place becomes zero

What is the first step when counting backward from 720?

• Ungroup the tens place

• Decrease the hundreds place

• Increase the ones place

• Ungroup the hundreds place