Page 70 - Math_Genius_V1.0_C2_Flipbook

E:\Working\Focus_Learning\Math_Genius_2_(09-10-2023)\Open_Files\Chap_04
\ 17-Nov-2023 Bharat Arora Proof-6 Reader’s Sign _______________________ Date __________

Answer the following.

1. Ajay chooses 15 daisy, 13 lily and 25 rose plants. How many plants does he
buy in all? __________

2. Madhu takes 18 hibiscus and 24 dahlia plants. Find how many plants she takes

in all. __________
3. Who buys more plants and by how many? __________

Addition of 2-digit Bigger numBers

Sometimes when we add two 2-digit numbers,
we get the sum as a 3-digit number. To understand

it, let us consider the following situation.
Ritika and Mansi are decorating their home with

garlands for the Diwali celebration.

Ritika uses 60 garlands and Mansi 50 garlands.

ritika: How many garlands we have used
altogether?
t O
Mansi: To know the total, we need to add 60 and 50. 6 0

Ritika: Okay, let us add them step-wise by writing the numbers in + 5 0
columns.

Step 1. First, add the ones. Step 2. Next, add the tens and regroup.
0 + 0 = 0 ones 6 + 5 = 11 tens = 1 hundred + 1 ten

Write 0 at ones place. (More than 9 tens, so regroup into hundreds and tens.)

t O Write 1 ten at the tens column and carry
over 1 hundred to the hundreds column.
6 0
+ 5 0 H t O

0 1
6 0
+ 5 0

1 1 0

Thus, we get 60 + 50 = 110

68 Mathematics-2