12+34=?
54
45
34
56
To add fractions, denominators should be the same. Here,12+34 =24+34 =2+34 =54 ∴ 12+34=54
Find the mode from the given data.
1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2 , 3, 4, 1, 2, 3, 4, 1 ,2 , 3, 4, 5, 5, 1, 5, 5, 5, 3, 5, 1, 2, 4, 5, 6, 1, 2, 4, 2, 1
Question 22
Which of the following is an example of distributive property of multiplication over addition for rational numbers. (a) −14×{23+(−47)}=[−14×23]+[−14×(−47)] (b) −14×{23+(−47)}=[14×23]−(−47) (c) −14×{23+(−47)}=23+(−14)×−47 (d) −14×{23+(−47)}={23+(−47)}−14
(1) 42 + 24 − 32
(2) 33 − 22 + 20
(3) 53 − 22 + 40
(4) 61 + 50 − 41
(5) (−2)2 + 12 − 22