Question

4. Which of these answers are obviously incorrect?

Use estimates to identify them. Show how you estimated the answers.
a) 37 x 21 = 777
b) 6 091 = 33 = 1 845
c) (816 +214) = (103 + 419) = 1,97
d) 11 X 603-3 x 240 = 519

Answer 1

b

Explanation:

it's obvious that 33 can't equal two other numbers.