Addition

18 Grade 3 Mathematics questions on Addition, with worked marking schemes. 18 questions are available on this topic in full.

1. Question 1

   3 marks

   A trader sold goods worth Ksh 4,250 on Monday and Ksh 3,890 on Tuesday. How much was sold in the two days?

   (3 marks)

   Marking scheme

   The two days together means add the two amounts: $4,250+3,890$. (1)

   $3,890$ is $110$ less than $4,000$, so add $4,000$ first: $4,250+4,000=8,250$. (1)

   Now take back the extra $110$: $8,250-110=8,140$. (1)

   Final answer: Ksh $8,140$.

2. Question 2

   1 mark

   Work out $234+158$.

   A. $312$

   B. $392$

   C. $382$

   D. $402$

   (1 mark)

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3. Question 3

   2 marks

   Add: 5,674 + 2,389 = ___

   (2 marks)

   Marking scheme

   Line up the place values and add the ones first: $4+9=13$, so write $3$ and carry $1$ to the tens. (1)

   Tens: $7+8+1=16$, write $6$ carry $1$. Hundreds: $6+3+1=10$, write $0$ carry $1$. Thousands: $5+2+1=8$. (1)

   Final answer: $5,674+2,389=8,063$.

4. Question 4

   2 marks

   Add three numbers: 1,234 + 2,345 + 3,456 = ___

   (2 marks)

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5. Question 5

   1 mark

   What is $408+96$?

   A. $414$

   B. $584$

   C. $494$

   D. $504$

   (1 mark)

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6. Question 6

   2 marks

   What must be added to 3,768 to get 6,000?

   (2 marks)

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7. Question 7

   1 mark

   Work out: 3,456 + 2,321 = ___

   (1 mark)

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8. Question 8

   1 mark

   Add: 9,999 + 1 = ___

   (1 mark)

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9. Question 9

   3 marks

   There are 1,243 pupils in School A, 2,108 in School B and 3,502 in School C. How many pupils in all?

   (3 marks)

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10. Question 10

    2 marks

    The sum of two numbers is 7,800. One number is 4,350. What is the other number?

    (2 marks)

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11. Question 11

    1 mark

    Add: 4,763 + 1,846 = ___

    (1 mark)

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12. Question 12

    2 marks

    Find the missing number: ___ + 1,234 = 5,678

    (2 marks)

    Marking scheme

    The missing number plus $1,234$ makes $5,678$. Subtraction undoes addition, so the missing number is $5,678-1,234$. (1)

    $5,678-1,234=4,444$. (1)

    Final answer: $4,444$. Check: $4,444+1,234=5,678$.

13. Question 13

    3 marks

    A farmer harvested 2,648 kg of maize and 3,175 kg of beans. Find the total mass harvested.

    (3 marks)

    Marking scheme

    Total mass means the two masses added together: $2,648+3,175$. (1)

    Ones: $8+5=13$, write $3$ carry $1$. Tens: $4+7+1=12$, write $2$ carry $1$. (1)

    Hundreds: $6+1+1=8$. Thousands: $2+3=5$. (1)

    Final answer: $5,823$ kg.

14. Question 14

    2 marks

    Find the sum of 3,008 and 4,997.

    (2 marks)

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15. Question 15

    1 mark

    Work out: 6,057 + 2,843 = ___

    (1 mark)

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16. Question 16

    2 marks

    A school has $267$ boys and $315$ girls. How many pupils are in the school altogether?

    (2 marks)

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17. Question 17

    2 marks

    Find the sum of 4,509 and 3,491.

    (2 marks)

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18. Question 18

    1 mark

    Add: 2,700 + 1,800 = ___

    (1 mark)

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