Q1: Find the following products
(i) 38 x 9 ______.
(ii) 80 x 5 ______.
(iii) 53 x 8 ______.
Take the help of this example to solve the questions above:
Q2: Multiply
(i) 4,032 by 198
(ii) 3,647 by 245
(iii) 501 by 123
Take the help of this example to solve the questions above:
Q3: Fill in the blanks
(i) 2,586 x ______ = 2,586
(ii) 624 x ______ = 38 x 624
(iii) 600 x ______ = 0.
Q4: Round off the following numbers to the nearest tens
(i) 13,528
(ii) 3,542
(iii) 174
You can solve the questions of rounding off with the help of these examples: 
Q5: Estimate Products by rounding each number to the nearest Tens
Instruction: Find an approximate answer for each multiplication problem by rounding both numbers to the nearest tens place first, then multiplying the rounded numbers.
(i) 52 x 43
(ii) 63 x 52
Q6: Answer the following Questions
(I) Calculate the product of the place values of the two 6s in the number 6,965.
(ii) Find the product of the greatest 2-digit number and the smallest 4-digit number ______.
(iii) A transistor costs Rs. 1,642. Find the cost of 95 such transistors.
(iv) A candle factory produced 814 candles in a day. How many candles will this factory produce in one year?
(v) A farmer produced 735 quintals of rice. He sold it at the rate of Rs. 1525 per quintal. How much money did he get?
(vi) The cost of a pack of Ghee is Rs. 308 Find the cost of 97 such packs.