Counting Forward and Backward by One

If Betsy the cow made 24 cartons of milk on Monday and increased by one each day, how many cartons did she make on Wednesday?

• 27

• 26

• 25

• 28

What happens to the ones place when you count backward by one from 489?

• It becomes 490

• It stays the same

• It becomes 488

• It becomes 487

If you have 489 eggs and count backward by one twice, how many eggs do you have?

• 486

• 487

• 485

• 488

Alice grew 56 tomatoes last week and grows one more each week. How many tomatoes will she have after two weeks?

• 58

• 59

• 60

• 57

What tool can help you visualize counting forward by one?

• A calculator

• A hundreds chart

• A calendar

• A ruler