Add the following:
`3/{10} +2/{10}+7/{10}`

Find the following: 7/(10)+2/(10)

1.Add the following : 5/7 and 2/7

Add the following -3/7,-3/2,-3/4

Find the mean of the following distribution: 10 30 50 70 89 7 8 10 15 10

1/4+2/4 3/10+2/10+1/10

Evaluate the following : |-7|+|10|

Verify the following : (-10)xx{(-7)+(-9)}={(-10)xx(-7)}+{(-10)xx(-9)}

Write each of the following as decimals: (i) 20+7+3/(10) (ii) 500+3+7/(10)

Write each of the following as decimals: (a) 65+2/10+7/100 (b) 45 + 9/100 (c) 88 + 5/10 + 2/1000 (d) 3/10 + 7/1000

Compare the following numbers: (i) 2. 7xx10^(12) and 1. 5xx10^8 (ii) 4xx10^(14) and 3xx10^(17)