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Let’s Learn!

Number lines help us add.

Goal:

Goal:

thinking monkey

Think About It!

Goal: How does a number line help us add to a two-digit number?

Griffy had 14 costumes. His owner bought him 3 more costumes. How many costumes does Griffy have now? Let’s use a number line to find out!

Number line: 14 through 24, with a dot on 14, and red circle around it as well.

14 + 3 = 17

Put a dot on the larger addend.

Number line: 14 through 24. There are 3 jumps shown that indicate +1 +1 +1, which lands on the number 17. The 3 jumps showing +1 +1 +1, are circled in red.

14 + 3 = 17

Count on the smaller addend by jumping to the right

Number line: 14 through 24. There are 3 jumps shown that indicate +1 +1 +1, which lands on the number 17. 17 is circled in red.

14 + 3 = 17

The number you land on is the sum!

What addition sentence do you see? Click the box to check your answer.