Let’s solve each part step by step.
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Part a:
Bob has 9 red pencils.
His sister has 2 blue pencils.
We need to find how many pencils there are altogether.
That means we add:
9 + 2 = ?
Let’s count on the number line:
Start at 9, then jump 2 steps forward → 10, 11.
So, 9 + 2 = 11
Equation: 9 + 2 = 11
Answer: 11 Pencils
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Part b:
Olivia has 3 pink dresses.
Her sister has 8 pink dresses.
Total dresses? Add them:
3 + 8 = ?
On the number line: Start at 3, jump 8 steps → 4,5,6,7,8,9,10,11
So, 3 + 8 = 11
Equation: 3 + 8 = 11
Answer: 11 Dress (Note: It should be “Dresses” but worksheet says “Dress”, so we follow it.)
Wait — let me double-check both:
a. 9 + 2 = 11
✔
b. 3 + 8 = 11
✔
Both answers are 11. That’s correct.
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Final Answer:
a. Equation: 9 + 2 = 11 | Answer: 11 Pencils
b. Equation: 3 + 8 = 11 | Answer: 11 Dress
Parent Tip: Review the logic above to help your child master the concept of number problems worksheet.