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Mental Math on Multiplication Worksheet

In mental math on multiplication we will solve different type of problems on multiplication, multiplication of a 2-digit number by a 1-digit number, multiplication of a 3-digit number by a 1-digit number, multiplication of a 4-digit number by a 1-digit number, multiplication by a 2-digit number, multiplication by a 3-digit number, properties of multiplication, multiplication by tens, multiplication by hundreds, multiplication by thousands and word problems on multiplication.

1. 945 × 28 = __________ × 945

2. __________ × 1 = 3,468.

3. 2492 × __________ = __________ × 2492 = 0

4. 1,592 × 126 = 1,592 × 100 + 1,592 × _______ + _______ × 6

5. Find the product of the place-values of 6 in 6462. __________

6. Find the product of the greatest 2-digit number and the smallest 4-digit number. __________

7. 65 × 7000 = __________

8. 924 × 1,000 = __________

9. 7 × 9000 = __________

10. How many zeroes are there in the product 25 × 6,000? __________

11. Tick (✔) the correct option.

(i) Let us assume that the air fare from Delhi to Jaipur is Rs. 3,428. If 12 students travelled from Delhi to Jaipur for a competition, how much fare did they pay?

(a) Rs. 41,136; (b) Rs. 36,412; (c) 1,52,612; (d) Rs. 1,20,000

(ii) 100 + 100 + 100 + 100 + 100 is the same as

(a) 5×100; (b) 5; (c) 100; (d) none of these

(iii) If 11 × 22 × 100 = 24,200, then what is 100 × 22 × 11 ?

(a) 24,300; (b) 24,200; (c) 11,000; (d) 22,000

(iv) 1000 × 100 is

(a) 2,000; (b) 20,00,000; (c) 1,00,000; (d) none of these

Answer:

1. 28

2. 3,468.

3. 0

4. 20; 1,592

5. 3,60,000

6. 99000

7. 455000

8. 924000

9. 63000

10. 4 zeroes.

11. (i) (a)

(ii) (a)

(iii) (b)

(iv) (c)

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