Medium-1 mixes addition and subtraction stories within 15 so first graders must decide which operation fits. They work through three problems about Ella's markers, children at the park, and red and blue balls in a box. A five-question key word section drills the meaning of 'in all,' 'how many are left,' and 'how many more' so kids learn to pick the right operation from the wording alone.
Style:
Word Problems: Add & Subtract Within 20
Part A: Solve the Word Problems
Read each problem. Use the box to show your work. Write the answer.
1. Ella has 8 markers. Her friend gives her 5 more. How many markers does Ella have now?
Answer: 13 markers
2. There are 14 children at the park. Then 6 go home. How many children are still at the park?
Answer: 8 children
3. A box has 7 red balls and 5 blue balls. How many balls are in the box in all?
Answer: 12 balls
Part B: Key Words
Fill in the blank with 'add' or 'subtract'.
1. When you see 'in all,' you should add.
2. When you see 'how many are left,' you should subtract.
3. When you see 'how many more,' you should subtract.
4. When you see 'altogether,' you should add.
5. When you see 'take away,' you should subtract.
Word Problems: Add & Subtract Within 20
★ Part A: Solve the Word Problems
Read each problem. Use the box to show your work. Write the answer.
1) Ella has 8 markers. Her friend gives her 5 more. How many markers does Ella have now?
Answer: 13 markers
2) There are 14 children at the park. Then 6 go home. How many children are still at the park?
Answer: 8 children
3) A box has 7 red balls and 5 blue balls. How many balls are in the box in all?
Answer: 12 balls
★ Part B: Key Words
Fill in the blank with 'add' or 'subtract'.
1) When you see 'in all,' you should add.
2) When you see 'how many are left,' you should subtract.
3) When you see 'how many more,' you should subtract.
4) When you see 'altogether,' you should add.
5) When you see 'take away,' you should subtract.
Ready to Practice?
Read each word problem carefully. Show your work in the box. Then answer the questions below.
8 Questions
15-20 minutes
Auto-graded
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