Page 108 - Math Skill - 5
P. 108
106 Maths
MIND MAP
Estimation
Estimation mean ‘Fair Guess’ or ‘Approximation’
Rounding Off Numbers Rounding Off Decimals
Process
1. If the digit on the right of the rounding
place is greater than or equal to 5
then add 1 to the digit at rounding
place otherwise do not change.
2. Replace all digits to the right of the
rounding place by zeros.
Applications
Round off to Tens
80947386 80947390 Applications
80947386 Round off to Hundred 80947400 1.3476 Round off ones 1
Round off to Thousand 1.3476 Round off Tenths 1.3000
80947386 80947000
80947386 Round off to Ten Thousand 80950000 1.3476 Round off Hundredths 1.3500
Round off to Lakh 1.3476 Round off Thousandths 1.3480
80947386 80900000
