Register
Jack broke apart 5 times 216 as ( 5 times 200) + ( 5 times 16) to multiply mentally. What strategy did he use
214k views
3 votes
Jack broke apart 5 times 216 as ( 5 times 200) + ( 5 times 16) to multiply mentally. What strategy did he use

User Christopher A
by
8.2k points

1 Answer

4 votes
he used a method called foil .
User Crypto
by
8.2k points
← Prev Question Next Question →

Related questions

User DoamnaT
asked Dec 9, 2017 98.7k views
Jack broke apart 5×216 as (5 X 200 ) + (5 X 16) to multiply mentally what strategy did Jack Use?
DoamnaT asked Dec 9, 2017
by DoamnaT
8.5k points
2 answers
4 votes
98.7k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!