Let’s solve each problem one by one, step by step.
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Problem 1: Marbles in a jar
Cardo put 12 marbles in a jar.
Tino put 7 marbles in the same jar.
We need to find how many marbles they put in total → that means we ADD.
Number sentence:
12 + 7 = ?
Let’s calculate:
12 + 7 = 19
Answer:
19 marbles
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Problem 2: Coconut tarts
Bodine baked 17 coconut tarts.
Her sister Ebony took 8 of them.
We need to find how many are left → that means we SUBTRACT.
Number sentence:
17 - 8 = ?
Let’s calculate:
17 - 8 = 9
Answer:
9 coconut tarts
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Problem 3: Black crabs
Lou took 6 black crabs from the pen.
Ean took 7 MORE black crabs than Lou.
So Ean took 6 + 7 = ? crabs.
Wait — let’s read again: “Ean took 7 more black crabs than Lou.”
That means if Lou took 6, then Ean took 6 + 7 = 13.
The question is: How many black crabs did Ean take? → So it’s just 6 + 7.
Number sentence:
6 + 7 = 13
Answer:
13 black crabs
*(Note: The wording might trick you into thinking about subtraction or comparing, but it says “Ean took 7 more than Lou” — so we add 7 to Lou’s amount to get Ean’s amount.)*
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Problem 4: Jellybeans
Kisha has 18 jellybeans.
She gives her friend Taria 5 of them.
We need to find how many she has LEFT → that means we SUBTRACT.
Number sentence:
18 - 5 = ?
Let’s calculate:
18 - 5 = 13
Answer:
13 jellybeans
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Final Answer:
19 marbles
9 coconut tarts
13 black crabs
13 jellybeans
Parent Tip: Review the logic above to help your child master the concept of addition problem solving worksheet for grade 2.
