Question 27: What is the result of quickly calculating 229.21 – 129.21?

Use the distributive property of multiplication for subtraction: a.(b – c) = ab – ac

We have: 229.21 – 129.21 = 21.(229 – 129) = 21,100 = 2100.

Choose A

===============

- Menu
- Skip to primary navigation
- Skip to secondary navigation
- Skip to main content
- Skip to primary sidebar

Question Anwer Mathematics online

You are here: Home / Natural numbers / Question 27: What is the result of quickly calculating 229.21 – 129.21?

// by admin// Leave a Comment

Question 27: What is the result of quickly calculating 229.21 – 129.21?

Use the distributive property of multiplication for subtraction: a.(b – c) = ab – ac

We have: 229.21 – 129.21 = 21.(229 – 129) = 21,100 = 2100.

Choose A

===============