Addition Subtraction BiggerNumbers 1stYearBasics 2022 1 .pptx

ADDITION AND SUBTRACTION OF
BIGGER NUMBERS

Key for Quick Calculation
Know what BODMAS rule is?
1. Conventional method of addition and subtraction
2. Split-RoundUp method of addition and subtraction

Explanation:
Evaluate:
57432 + 2346 + 785 + 34 = ?
Analysis and Approach

Split-RoundUp
1st step:
Add the smallest numbers = 785+34 =
785+15+15+4 = 819
2nd step:
Now add 2346+819 = 2000+346+19+800 =
2800+365 = 3165
3rd step:
Now add 57432+3165 =
57000+400+32+3000+100+65 =
60000+500+97 =
ANS:60597
Explanation:
57432 + 2346 + 785 + 34 = ?
Analysis and Approach
Conventional
1st step:
2+6+5+4=[1]7 => digit of the sum of Unit = 7
2nd step:
3+4+8+3+[1]=[1]9=digit of the sum of Tenth =9
3rd step:
4+3+7+[1]=[1]5=>digit of the sum of
Hundred =5
4th step:
7+2+[1]=[1]0=>digit of the sum of
Thousand =0
5th step:
5+[1]=6=>digit of sum of Tenth thousand = 6
ANS:60597

Evaluate: 6666 + 666 + 66 + 6 = ?
Question: Q01

Evaluate: 57543 - 2346 + ? = 85432
Question: Q02

Question: 01
Evaluate: 94532 - 6754 - ? = 75432 - 2346
Question: Q03

Evaluate: 0.9999 + 0.999 + 0.99 + 0.9 = ?
A. 3.8889
B. 3.8879
C. 3.8869
D. 3.8859