🔢 Detailed Explanation of Addition and Subtraction Word Problems – Up to 100

When we learn addition and subtraction word problems with numbers up to 100, it means we solve stories that use adding or taking away with numbers less than or equal to 100. This is important for Year 2 students in the UK because it helps us use maths in real-life situations.

📝 Key Words to Know:

  • Add means to put numbers together.
  • Sum is the answer when we add.
  • Subtract means to take away.
  • Difference is the answer when we subtract.

🎯 How to Solve Addition and Subtraction Word Problems

We can follow these easy steps to solve the problems:

  1. Read the problem carefully to understand what is happening.
  2. Find the important numbers in the story.
  3. Look for key words like ‘add’, ‘sum’, ‘subtract’, or ‘difference’.
  4. Decide if you need to add or subtract.
  5. Do the calculation with the numbers.
  6. Write the answer clearly with a sentence.

✏️ Example 1: Addition Word Problem

Anna has 45 pencils. She buys 30 more pencils. How many pencils does Anna have now?

  • Important numbers: 45 and 30
  • Key word: “buys more” means we add
  • Calculation: 45 + 30 = 75
  • Answer: Anna has 75 pencils now.

✏️ Example 2: Subtraction Word Problem

Tom has 90 stickers. He gives 25 stickers to his friend. How many stickers does Tom have left?

  • Important numbers: 90 and 25
  • Key word: “gives” means we subtract
  • Calculation: 90 – 25 = 65
  • Answer: Tom has 65 stickers left.

💡 Tips for Solving These Problems:

  • Always circle or underline key words.
  • Take your time with the numbers.
  • Check your answer makes sense with the story.
  • Use objects or drawings if it helps you understand.

By practising word problems with numbers up to 100, you can become great at addition and subtraction and use these skills every day!

🧮 20 Examination-Style Questions with Answers on Addition and Subtraction Word Problems – up to 100

Here are 20 addition and subtraction word problems designed for Year 2 students learning about numbers up to 100. Each question includes an answer and explanation to help you understand how to solve them step-by-step.

  1. Emma has 45 apples. She buys 32 more apples. How many apples does she have now?
    Answer: 45 + 32 = 77 apples
    Explanation: Start with 45 apples and add 32 more. Adding the two numbers gives 77 apples.

  2. Tom has 70 marbles. He gives 23 to his friend. How many marbles does Tom have left?
    Answer: 70 – 23 = 47 marbles
    Explanation: Subtract the 23 marbles he gave away from 70 to find out how many he still has.

  3. There are 58 chocolates in a box. Sophie eats 17 chocolates. How many chocolates are left?
    Answer: 58 – 17 = 41 chocolates
    Explanation: Take away the chocolates Sophie ate from the total number in the box.

  4. A farmer has 34 cows and 46 sheep. How many animals does the farmer have in total?
    Answer: 34 + 46 = 80 animals
    Explanation: Add the number of cows and sheep together to get the total number of animals.

  5. Lucy reads 65 pages of her book. She plans to read 27 more pages. How many pages will she have read altogether?
    Answer: 65 + 27 = 92 pages
    Explanation: Add the pages Lucy already read to the pages she will read next.

  6. James has 90 pencils. He loses 35 pencils. How many pencils does he have now?
    Answer: 90 – 35 = 55 pencils
    Explanation: Subtract the lost pencils from the total to find how many remain.

  7. There are 81 birds in a park. 29 birds fly away. How many birds are left in the park?
    Answer: 81 – 29 = 52 birds
    Explanation: Subtract the birds that fly away from the total number of birds present.

  8. Mia has 47 stickers. Her friend gives her 38 more stickers. How many stickers does Mia have now?
    Answer: 47 + 38 = 85 stickers
    Explanation: Add the stickers Mia already has and the ones her friend gave to find the total.

  9. A shop has 100 balloons. It sells 45 balloons during the day. How many balloons are left?
    Answer: 100 – 45 = 55 balloons
    Explanation: Take away the balloons sold from the total to find what remains.

  10. Jack collected 56 shells on the beach. Later he found 22 more shells. How many shells does he have in total?
    Answer: 56 + 22 = 78 shells
    Explanation: Add the two amounts of shells to get the total.

  11. There are 92 cars in the parking lot. 38 cars leave. How many cars remain?
    Answer: 92 – 38 = 54 cars
    Explanation: Subtract the cars that left from the total number.

  12. Sarah buys 43 red balloons and 37 blue balloons. How many balloons does she have in total?
    Answer: 43 + 37 = 80 balloons
    Explanation: Add the number of red and blue balloons to find the total.

  13. Mike has 78 sweets. He shares 49 sweets with his friends. How many sweets are left?
    Answer: 78 – 49 = 29 sweets
    Explanation: Subtract the sweets shared from the total sweets Mike had.

  14. A zoo has 63 monkeys and 29 elephants. How many animals are there altogether?
    Answer: 63 + 29 = 92 animals
    Explanation: Add the number of monkeys to the number of elephants.

  15. Ella had 85 crayons. She gave 41 crayons to her little brother. How many crayons does Ella have now?
    Answer: 85 – 41 = 44 crayons
    Explanation: Subtract the crayons Ella gave from how many she started with.

  16. There are 50 chairs in a hall. 34 chairs are occupied. How many chairs are empty?
    Answer: 50 – 34 = 16 chairs
    Explanation: Subtract the occupied chairs from the total to find how many are empty.

  17. A farmer plants 28 carrots and 60 potatoes. How many vegetables does he plant in total?
    Answer: 28 + 60 = 88 vegetables
    Explanation: Add the number of carrots and potatoes.

  18. Tom had 96 stamps. He sold 55 stamps. How many stamps does Tom have now?
    Answer: 96 – 55 = 41 stamps
    Explanation: Subtract the sold stamps from the total.

  19. Jenny has 64 beads. She buys 23 more beads. How many beads does Jenny have?
    Answer: 64 + 23 = 87 beads
    Explanation: Add the beads Jenny has to the beads she bought.

  20. There were 77 books on a shelf. 48 books were taken out. How many books are still on the shelf?
    Answer: 77 – 48 = 29 books
    Explanation: Subtract the books taken out from the total books on the shelf.

These addition and subtraction word problems help Year 2 students practice working with numbers up to 100. Try to read the question carefully, decide if you need to add or subtract, and then calculate step-by-step. Keep practising to get better at solving word problems!