Question

A) Work out the value of 23 +52

b) Work out the value of 72-33
c) Work out the value of 82 + √100

Answer 1

Explanation:

One

23 + 52 = 75 This can be done using columns

2 3

5 2 No carries Add.

7 5

Two

72 - 33 = 39

7 2

3 3 You have to borrow a ten from the 7 to make this work

3 9

Three

82 + sqrt(100)

sqrt(100) = 10

82 + 10 = 92