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Math · Grade 1 Math

Chapter 10: Numbers to 120 and Adding to 100

Tricky Comparison Problems

Some problems try to lead you the wrong way.

Lesson
9
Time
About 14 minutes
0 of 7 done

Step 1: Let's Learn

Read it, or press Listen and follow the words.

Some problems say "more" but you have to take away.

Read it slowly

Ana has 5 more than Leo. Ana has 12. How many does Leo have?

The word says more, but Leo has fewer. 12 − 5 = 7.

Draw it first

Draw the two bars. The picture tells you what to do.

"More" does not always mean add

"Sam has 3 more than Ana, and Sam has 10" needs a subtraction. The word points at a comparison, not an operation.

Draw it when the words fight you

A two-bar picture settles which number is bigger. That is faster than arguing with the sentence.

Step 2: Try It Yourself

The hatched bar is the amount you have to work out.

Ana’s bar is known. Leo’s is not. Work out how long it is.
Ana
Leo

The hatched bar is the amount the story is asking for.

Leo7

Step 3: Watch an Example

One step at a time.

Watch Ana Avoid the Trap

Ana has 5 more shells than Leo. Ana has 12.

  1. Step 1

    She notices the word "more" and slows down.

Step 4: Your Turn

Practice makes it stick.

Marbles

Problem 1 of 2

Ana has 4 more than Leo. Ana has 15. How many does Leo have?

marbles

Books

Problem 2 of 2

Leo has 3 fewer than Ana. Leo has 8. How many does Ana have?

books

Read It Twice

1 of 3

6 more than Leo. Ana has 14. Leo has?

2 of 3

5 fewer than Ana. Leo has 9. Ana has?

3 of 3

2 more than Leo. Ana has 13. Leo has?

Step 5: Quick Check

Show what you know.

Question 1 of 2

Ana has 3 more than Leo. Ana has 10. Leo has?

Question 2 of 2

Does the word "more" always mean add?

What You Learned

  • A word in the problem is not the answer.
  • Draw the two bars first.
  • The picture shows you what to do.