Question

Radhika’s mother gave her Rs.10.50 and her father gave her Rs. 10.85, find the total amount given to Radhika by her parents.

Answer 1

Hint: This is a problem of addition of decimal numbers. A decimal number is a number present between two integers. There can be infinite decimal numbers between two numbers. To add the numbers simply carry over the sum to the next place just like in addition to two whole numbers, and place the decimal at the same position.

Complete step-by-step answer:
The money given to Radhika by her mother = Rs. 10.50
The money given to Radhika by her father = Rs. 10.85
Total money given to Radhika by her parents = Rs (10.50 + 10.85)
     1
  1 0 . 5 0
+1 0 . 8 5
_________
  2 1 . 3 5

Hence, the total money given to Radhika by her parents is Rs. 21.35.

Note: This is a simple problem of addition but students should take care of the position of the decimals. If the two quantities are added, ensure that the number of digits after the decimal are equal. We can do this by adding zeros in the end. For example- To add 1.5 and 1.25, write 1.5 as 1.50 to avoid confusion.