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Home >> Decimal >> Multiplication of Decimals >> Multiplication of decimal with a whole number >> Examples Multiplication of decimal with a whole number : Solved Examples
Multiply the following decimals with whole number
A) 247 and 1.3
B) (3.64 X 7)
C) (63 X 4.32)
D) (13.001 X 18)

A) 247 and 1.3
Step 1 : Multiply the whole number 247 and decimal 1.3 (ignoring the decimal point) and we get:
247
X 13
Solve the multiplication operation and we get:
Step 2: Place the decimal points so that product 3211 and given decimal 1.3 have same number of decimal places.
Here, we can see that given decimal 1.3 have one decimal place i.e. digit 3
And we will place decimal point in product so that product also has one decimal place & we get:
Product = 321.1 (having one decimal place i.e. digit 1)
Hence, product of 247 and 1.3 = 321.1
B) (3.64 X 7)
Step 1: Multiply the whole number 7 and decimal 3.64 (ignoring the decimal point) and we get:
364
X 7
Solve the multiplication operation and we get:
Step 2: Place the decimal points so that product 2548 and given decimal 3.64 have same number of decimal places.
Here, we can see that given decimal 3.64 have two decimal places i.e. digit 6 and 4.
And we will place decimal point in product so that product also has two decimal places & we get:
Product = 25.48 (having two decimal places i.e. digit 4 and 8)
Hence, 3.64 X 7 = 25.48
C) (63 X 4.32)
Step 1: Multiply the whole number 63 and decimal 4.32 (ignoring the decimal point) and we get:
432
X 63
Solve the multiplication operation and we get:
Step 2: Place the decimal points so that product 27216 and given decimal 4.32 have same number of decimal places.
Here, we can see that given decimal 4.32 have two decimal places i.e. digit 3 and 2
And we will place decimal point in product so that product also has two decimal places & we get:
Product = 272.16 (having two decimal places i.e. digit 1 and 6)
Hence, 63 X 4.32 = 272.16
D) (13.001 X 18)
Step 1: Multiply the whole number 18 and decimal 13.001 (ignoring the decimal point) and we get:
13001
X 18
Solve the multiplication operation and we get:
Step 2: Place the decimal points so that product 234018 and given decimal 13.001 have same number of decimal places.
Here, we can see that given decimal 13.001 have three decimal places i.e. digit 0, 0 and 1
And we will place decimal point in product so that product also has three decimal places & we get:
Product = 234.018 (having three decimal places i.e. digit 0, 1 and 8)
Hence, 13.001 X 18 = 234.018

Related Question Examples
Multiply the following decimals with whole number
A) 247 and 1.3
B) (3.64 X 7)
C) (63 X 4.32)
D) (13.001 X 18)


