Last updated at Feb. 19, 2019 by Teachoo

Transcript

Ex 6.2, 3 Add without using number line : (a) 11 + ( 7) 11 + ( 7) = 11 7 = 4 Rules + & becomes + & + becomes + & becomes + Ex 6.2, 3 Add without using number line : (b) ( 13) + (+18) 13 + (+18) = 13 + 18 = 18 13 = 5 Rules + & becomes + & + becomes + & becomes + Ex 6.2, 3 Add without using number line : (c) ( 10) + (+ 19)( 10) + (+ 19) = 10 + 19 = 19 10 = 9 Rules + & becomes + & + becomes + & becomes + Ex 6.2, 3 Add without using number line : (d) ( 250) + (+ 150)( 250) + (+150) = 250 + 150 Taking common = (250 150) = 100 Rules + & becomes + & + becomes + & becomes + Ex 6.2, 3 Add without using number line : (e) ( 380) + ( 270) ( 380) + ( 270) = 380 270 Taking common = (380 + 270) = 650 Rules + & becomes + & + becomes + & becomes + Ex 6.2, 3 Add without using number line : (f) ( 217) + ( 100)( 217) + ( 100) = 217 100 = (217 + 100) = 317

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.