Question

Compatible numbers to estimate 26x22

Answer 1

Answer:

(30, 5) (30,10) x (20, 4) (20, 5) (20, 10)

Explanation:

Compatible numbers are numbers that can be easily used to perform mathematical operations like addition subtraction multiplication and division and can be rounded off to nearest 10, 100 or even 50

Compatible numbers to estimate 26x22

26 = (30, 5) (30,10)       ( round 26 = 30)

22 = (20, 4) (20, 5) (20, 10)   ( round 22 = 20)

thus 20 x 30 is close to 26 x 22

        600 equivalent to 572 when you round off

Answer 2

So, the answer of 26x20 is 520 so using compatible numbers you can do 30x20 which equals 600 hope this helps