Hands-On
Can you add two-digit numbers on a number line?
Goal:
Goal:
Practice!
Goal: Add two-digit numbers on a number line.
Can you add two-digit numbers on a number line? Let’s try adding 53 + 12 together. You will need a counter and this number line .
Hands-On
Step 1: Put your counter on the largest addend.
12 + 53 = __
Step 2: Use your finger to count on the smallest addend by jumping to the right.
12 + 53 = __
Step 3: The number your finger lands on is the sum!
12 + 53 = 65
Let’s add 50 + 21.
Step 1: Put your counter on the largest addend.
50 + 21 = ___
Step 2: Use your finger to count on!
Put your finger on the number 50.
Jump to right.
Instead of jumping by 1 this time, try jumping by two tens and a one.
50 + 21 = 71
^
2 tens, 1 one
Step 3: The number your finger lands on is the sum!
50 + 21 = 71
Great job! Keep practicing your addition skills by clicking the worksheet below. When you are done, turn in your assignment to your teacher with your Weekly Written Work.
Add to a Two-Digit Number Using a Number Line