Complete this sum

Answer explanation

10 ones = 1 ___

__ tens = 1 hundred

10 hundreds = _ thousand

12 ones is equal to _ tens and _ ones

12 tens is equal to _ hundreds and _ tens

What is the answer to this sum?

• 55,180

• 55,170

• 5,180

• 55,480

Answer explanation

A – Correct

B – Incorrect - you have not added the tens column correctly (you have not added the ten from 10)

C – Incorrect - you have not added the 50,000

D – Incorrect - you have not added the thousands column correctly (you have not added the extra thousand from 700 + 400)