quiz questions
multiplying decimals by whole number practice
using the strategies
decimal
100

estimate 6 x 9.3

54

100
0.2 x 2 =
0.4
100

if you are using the strategy for multiplying decimals in the traditional algorithm way how would you do that?

Multiply normally, ignoring the decimal points. Then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined.Count up how many numbers are after the decimal point in both numbers you are multiplying, then the answer should have that many numbers after its decimal point.

100
what is a decimal?
Relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.
200

solve 6 x 9.3

55.8

200
0.8 x 4 =
0.32
200

if you are multiplying decimals and some one asked you how to use repeated addition to solve what would you say?

varied answers 

200
what happens to a decimal when it is multiplied by 10?
the decimal moves to the right one time
300

A frog stew recipe calls for 3.75 pounds of meat. Jackson wants to make 5 batches of stew. How many pounds of meat does he need?😂🤣

18.75 lbs 

300
1.2 x 3 =
3.6
300

if you are multiplying a decimal by a whole number what is the first step you would do if using the area model?

decompose the factors 

300
what happens to a decimal when it is 1/10 of the original?
the decimal moves to the left once
400

Melody buys 12 pairs of sunglasses 😎😎on Shein for $1.29 each. How much money does she spend on 12 pairs of sunglasses? 


15.48

400
3.5 x 5 =
17.5
400

what are 2 models we used to multiply decimals?

answers vary 

400
what happens to a decimal when it is multiplied by 100?
the decimal moves to the right twice
500

Peighton uses Tiktok 3 days a week. She uses it for 4.5 hours each day. Peighton's mom wants to know how many hours Peighton spends on Tiktok each week. To find the product of 3 and 4.5 for her mom, Peighton uses an area model. How many hours does Peighton spend on Tiktok each week?  

13.5 hours

500
124.2 x 2 =
248.4
500

what is one way you have learned to multiply decimals by whole numbers?

explain.

500
what happens to a decimal when it is multiplied by 1,000?
the decimal moves to the right three times
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