Addition & Subtraction

17 Grade 4 Mathematics questions on Addition & Subtraction, with worked marking schemes. 17 questions are available on this topic in full.

1. Question 1

   1 mark

   Add: 17,500 + 23,500 = ___

   A. 40,000

   B. 41,000

   C. 41,500

   D. 42,000

   (1 mark)

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2. Question 2

   1 mark

   Find the sum of 46,309 and 27,845.

   A. 74,154

   B. 73,154

   C. 74,254

   D. 74,054

   (1 mark)

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3. Question 3

   1 mark

   What number must be added to 56,789 to get 90,000?

   A. 33,211

   B. 33,111

   C. 34,211

   D. 34,111

   (1 mark)

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4. Question 4

   1 mark

   50,000 − 17,364 = ___

   A. 31,636

   B. 32,736

   C. 33,636

   D. 32,636

   (1 mark)

   Marking scheme

   D. $32,636$ — subtracting from $50,000$ needs regrouping right across the three zeros. C is $1,000$ too large, which is what happens if one borrow is skipped.

5. Question 5

   1 mark

   75,630 − 34,815 = ___

   A. 40,715

   B. 40,915

   C. 40,815

   D. 41,815

   (1 mark)

   Marking scheme

   C. $40,815$ — subtract from the ones, regrouping wherever the top digit is smaller. A is exactly $100$ short, which is what dropping the borrow in the hundreds column gives.

6. Question 6

   1 mark

   45,678 − 9,999 = ___

   A. 35,578

   B. 36,679

   C. 35,789

   D. 35,679

   (1 mark)

   Marking scheme

   D. $35,679$ — a shortcut avoids all the borrowing: take away $10,000$ and give one back, $45,678-10,000+1=35,679$. A is the answer without giving that $1$ back.

7. Question 7

   1 mark

   Find: 60,000 − 28,547 = ___

   A. 32,453

   B. 31,543

   C. 31,453

   D. 31,353

   (1 mark)

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8. Question 8

   2 marks

   Wanjiku had $5000$ shillings. She bought a school bag for $2765$ shillings. How much money was she left with?

   (2 marks)

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9. Question 9

   1 mark

   A school collected 23,450 books and a library donated 14,875. Total books?

   A. 39,325

   B. 37,325

   C. 38,325

   D. 38,425

   (1 mark)

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10. Question 10

    1 mark

    99,999 + 1 = ___

    A. 100,000

    B. 100,001

    C. 100,010

    D. 99,000

    (1 mark)

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11. Question 11

    1 mark

    What is the difference between 80,000 and 43,568?

    A. 36,532

    B. 37,432

    C. 36,432

    D. 37,332

    (1 mark)

    Marking scheme

    C. $36,432$ — 'difference' means subtract the smaller from the larger, and subtracting from $80,000$ needs regrouping across the zeros. B is $1,000$ too large, the signature of a missed borrow in the thousands.

12. Question 12

    1 mark

    34,567 + 28,345 = ___

    A. 62,812

    B. 63,912

    C. 62,902

    D. 62,912

    (1 mark)

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13. Question 13

    1 mark

    Sum of 10,000 + 20,000 + 30,000 + 40,000 = ___

    A. 95,000

    B. 110,000

    C. 90,000

    D. 100,000

    (1 mark)

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14. Question 14

    1 mark

    A town had 68,340 people. 12,875 moved away. How many remained?

    A. 54,465

    B. 56,465

    C. 55,365

    D. 55,465

    (1 mark)

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15. Question 15

    1 mark

    Find: 25,000 + 38,500 = ___

    A. 63,400

    B. 63,500

    C. 62,500

    D. 64,500

    (1 mark)

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16. Question 16

    1 mark

    A shopkeeper had $3450$ shillings in her till. A customer paid her $1275$ shillings more. How much money is now in the till?

    A. $2175$

    B. $4725$

    C. $4715$

    D. $4625$

    (1 mark)

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17. Question 17

    1 mark

    A factory produced 34,560 items in March and 28,940 in April. Total items?

    A. 63,500

    B. 64,500

    C. 62,500

    D. 63,400

    (1 mark)

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