Grade 2 Mental Arithmetic Worksheet

Doorsteptutor material for IMO-Level-2 Class-7 is prepared by world's top subject experts: fully solved questions with step-by-step explanation- practice your way to success.

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(1) Calculate Mentally

(a)

Illustration 1 for (1) Calculate mentally.

Illustration 1 for (1) Calculate Mentally.

(b)

Illustration 2 for (1) Calculate mentally.

Illustration 2 for (1) Calculate Mentally.

(2) Calculate Mentally

(a)

Illustration 3 for (2) Calculate mentally.

Illustration 3 for (2) Calculate Mentally.

(b)

Illustration 4 for (2) Calculate mentally.

Illustration 4 for (2) Calculate Mentally.

(3) Tick ✓ the Correct Option. Cross-Out ✕ the Incorrect Ones

(a) 365 is equal to

(b) 630 is equal to

(c) 210 is equal to

(d) 380 is equal to

(4) Write in the Answer

(a)

(b)

(c)

(d)

(5) Answer the Questions

(a)

(b)

(c)

(d)

(6) Answer the Questions

(a)

(b)

(c)

(d)

(7) Correctly Answer the Questions

(a) What should be added to 400 to make it 800?

(b) How much more is 430 than 330?

(c)What is the difference between 735 and 300?

(e) How much is 185 added to 10?

(d) How much is 370 added to 30?

(8) Solve Mentally

(a)

(b)

(c)

(d)

(9) Solve Mentally

(a)

(b)

(c)

(d)

(10) Solve Mentally

(a)

(b)

(c)

(d)

(11) Tick ✓ the Right Option

(a)

(b)

(12) Tick ✓ the Correct Answer

(c)

(d)

(13) Solve

(a) The local library holds 342 horror story books and 89 adventure books. How many books are in the library?

(b) Aditya had 267 stamps. He gave 65 of his stamps to his sister. How many stamps does Aditya keep?

(c) Renuka made 125 bread pizzas for her son’s birthday party. 32 were left uneaten. How many were eaten?

(14) Answers the Questions

(a) Tonny is given Rs. 550 and Susant is given Rs. 200. Together, how much money do they have?

(b) A fisherman caught 230 fish in August and 99 fish in October. How many more fish did he catch in August than in October?

(c) Akbar bought 428 oranges. Out of those, 28 oranges are rotten. He bought 30 more oranges. How many oranges does he have now?

Answers and Explanations

Answer 1 (A)

  • Given addition result 190,

  • In 1st statement:

  • So,

  • In 2nd statement:

  • So,

  • In 3rd statement:

  • So,

  • Therefore, the answer is

    Illustration 5 for Answers and Explanations

    Illustration 5 for Answers and Explanations

Answer 1 (B)

  • Given addition result 235,

  • In 1st statement:

  • So,

  • In 2nd statement:

  • So,

  • In 3rd statement:

  • So,

  • Therefore, the answer is

    Illustration 6 for Answers and Explanations

    Illustration 6 for Answers and Explanations

Answer 2 (A)

  • Given addition result 375,

  • In 1st statement:

  • So,

  • In 2nd statement:

  • So,

  • In 3rd statement:

  • So,

  • Therefore, the answer is

    Illustration 7 for Answers and Explanations

    Illustration 7 for Answers and Explanations

Answer 2 (B)

  • Given addition result 650,

  • In 1st statement:

  • So,

  • In 2nd statement:

  • So,

  • In 3rd statement:

  • So,

  • Therefore, the answer is

    Illustration 8 for Answers and Explanations

    Illustration 8 for Answers and Explanations

Answer 3 (A)

  • Here, 365 is equal to:

  • Given 3 options; tick the correct option and cross-out the incorrect ones.

  • So,

Answer 3 (B)

  • Here, 630 is equal to:

  • Given 3 options; tick the correct option and cross-out the incorrect ones.

  • So,

Answer 3 (C)

  • Here, 210 is equal to:

  • Given 3 options; tick the correct option and cross-out the incorrect ones.

  • So,

Answer 3 (D)

  • Here, 380 is equal to:

  • Given 3 options; tick the correct option and cross-out the incorrect ones.

  • So,

Answer 4 (A)

  • In given statement,

  • Addition between given three numbers:

  • Therefore, the answer is 380.

Answer 4 (B)

  • In given statement,

  • Addition between 800 and 100:

  • Then subtract

  • Therefore, the answer is 850.

Answer 4 (C)

  • In given statement,

  • Addition between 500 and 450:

  • Then subtract

  • Therefore, the answer is 820.

Answer 4(D)

  • In given statement,

  • Subtraction between 600 and 200:

  • Then addition

  • Therefore, the answer is 480.

Answer 5 (A)

  • Given statement

  • Addition:

  • Therefore, the answer is 350.

(b)

Answer 5 (B)

  • Given statement

  • Addition:

  • Therefore, the answer is 295.

Answer 5 (C)

  • Given statement

  • Addition:

  • Therefore, the answer is 820.

Answer 5 (D)

  • Given statement

  • Addition:

  • Therefore, the answer is 454.

Answer 6 (A)

  • Given statement

  • Subtraction:

  • Therefore, the answer is 230.

Answer 6 (B)

  • Given statement

  • Subtraction:

  • Therefore, the answer is 240.

Answer 6 (C)

  • Given statement

  • Subtraction:

  • Therefore, the answer is 132.

Answer 6 (D)

  • Given statement

  • Subtraction:

  • Therefore, the answer is 120.

Answer 7 (A)

  • Number added to 400 to make it 800.

  • Write it into statement form:

  • Therefore, 400 should be to 400 to make it 800.

Answer 7 (B)

  • In the question, number more is 430 than 330,

  • Subtract 430 and 330:

  • Therefore, 100 more is 430 than 330.

Answer 7 (C)

  • The difference between 735 and 300,

  • Subtract form

  • Therefore, 435 is difference between 735 and 300.

Answer 7 (D)

  • Given question, 370 added to 30

  • Addition form

  • Therefore, the answer is 400.

Answer 7 (E)

  • Given question, 185 added to 10

  • Addition form

  • Therefore, the answer is 195.

Answer 8 (A)

  • Given addition statement,

  • Addition:

  • Therefore, the answer is 524.

Answer 8 (B)

  • Given addition statement,

  • Addition:

  • Therefore, the answer is 327.

Answer 8 (C)

  • Given addition statement,

  • Addition:

  • Therefore, the answer is 264.

Answer 8 (D)

  • Given addition statement,

  • Addition:

  • Therefore, the answer is 76.

Answer 9 (A)

  • Given statement ,

  • Subtraction between two numbers:

  • Illustration 9 for Answers and Explanations

    Illustration 9 for Answers and Explanations

  • Therefore, the answer is 879.

Answer 9 (B)

  • Given statement ,

  • Subtraction between two numbers:

  • Therefore, the answer is 670.

Answer 9 (C)

  • Given statement ,

  • Subtraction between two numbers:

  • Illustration 10 for Answers and Explanations

    Illustration 10 for Answers and Explanations

  • Therefore, the answer is 144.

Answer 9 (D)

  • Given statement ,

  • Subtraction between two numbers:

  • Illustration 11 for Answers and Explanations

    Illustration 11 for Answers and Explanations

  • Therefore, the answer is 419.

Answer 10 (A)

  • Given statement,

  • Addition between two numbers:

  • Therefore, the answer is 418.

Answer 10 (B)

  • Given statement,

  • Subtraction between two numbers:

  • Illustration 12 for Answers and Explanations

    Illustration 12 for Answers and Explanations

  • Therefore, the answer is 609.

Answer 10 (C)

  • Given statement,

  • Addition between two numbers:

  • Therefore, the answer is 263.

Answer 10 (D)

  • Given statement,

  • Subtraction between two numbers:

  • Illustration 13 for Answers and Explanations

    Illustration 13 for Answers and Explanations

  • Therefore, the answer is 409.

Answer 11 (A)

  • In given statement,

  • Solve it in, first subtraction

  • Then addition

  • Therefore, the correct option is .

Answer 11 (B)

  • In given statement,

  • Solve it in, addition between 1st two numbers

  • Then addition

  • Therefore, the correct option is .

Answer 12 (A)

  • In given statement,

  • Addition between given numbers:

  • Therefore, the correct option is

Answer 12(B)

  • In given statement,

  • Solve it in, first subtraction

  • Then addition

  • Therefore, the correct option is .

Answer 13 (A)

  • Horror story books

  • Adventure books

  • Total books

  • Therefore, 431 books are in the library.

Answer 13 (B)

  • Aditya had stamps

  • He gave 65 of his stamps to his sister.

  • So, he has stamps

  • Therefore, Aditya keep 202 stamps.

Answer 13 (C)

  • Renuka made bread pizzas for her son’s birthday party.

  • Total pizza made

  • Left uneaten pizza

  • So, eaten pizza

  • Illustration 14 for Answers and Explanations

    Illustration 14 for Answers and Explanations

  • Therefore, 93 pizzas were eaten.

Answer 14 (A)

  • Tonny

  • Susant

  • Together money

  • Therefore, they have Rs. 750 altogether.

Answer 14 (B)

  • A fisherman caught fish,

  • In August

  • In October

  • Difference

  • Illustration 15 for Answers and Explanations

    Illustration 15 for Answers and Explanations

  • Therefore, he catch 131 more fish in august than in October.

Answer 14 (c)

  • Akbar bought oranges

  • Rotten oranges

  • Remaining oranges

  • He bought 30 more oranges.

  • Now, he had oranges

  • Therefore, he has 430 oranges now.

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