Exponets
Multi-digit
Decimals
Word Problems
Random
100
Written out what is 10 to the 2nd exponent?
10 x 10
100
40 x 10 =
400
100
70 x 0.1 =
7.0
100
When you multiply 43.9 by 0.01, is the answer greater than or less than 4.39? Explain.
Possible: The answer is less than 4.39, the answer is 0.439. I got this answer because I know that when I multiply decimals I loose the decimal but then put the total amount of decimals back in. There was a total of 3 decimals so I shift 3 times back in to get 0.439
100
What is the definition of the work "shift"?
Shift is the direction a number moves (left or right).
200
What is the answer to 10 to the 4 exponent?
10 x 10 x 10 x 10= 10,000
200
53 x 100 =
5,300
200
100 x 5.2 =
52
200
Explain how you know how many zeros will be in the product of 300 x 40.
There will be five (5) zeros.There are 5 zeros because there are a total of 5 zeros in the factors.
200
How do you multiply by partial products?
Possible answer: There are two double digit number, one is broken into tens and ones the other stays whole. You have one box that is split in half where you how the multiplication of the 10's with the whole number and the ones with the whole number. Then you add the two numbers together for your answer.
300
Write out the following equation using an exponent: 4.9 x 10 x 10 x 10 x 10
4.9 x 10 (exponent of 4)
300
317 x 5 =
1,585
300
0.9 x 0.23 =
0.207
300
Mr. Jackson is taking 23 students to see a movie. Tickets for the movie cost 75 cents. How much money will Mr. Jackson spend on student tickets?
He would spend $17.25
300
What is the most important thing to remember when multiplying by multi digit numbers when using short cut method?
Putting a zero in the second row as your ones place value holder.
400
What is 8.7 x 10 (exponent 2)?
87.00
400
27 x 52 =
1,404
400
5.3 x 2.7 =
14.31
400
Ray needs to know the area of his floor so he can buy the right amount of carpet. The floor is 32 feet by 17 feet. What is the area of the floor?
32 x 17 = 544 sq. feet
400
Estimate 349 to the neatest hundredth.
300
500
What is 1.63 x 10 (exponent 3)
1630.00
500
386 x 13 =
5,018
500
9 x 0.03 = 9 x 3 x _____
.01
500
Tigers living in Siberia can have home ranges from 190 to 1,500 square miles depending on how plentiful their prey is. If a tiger's range is in the shape of a rectangle that is 47 miles wide by 29 miles long, what is the area of its home range?
47 x 29 = A A = 1,363 sq. miles
500
Estimate the answer to this product (Using hundredths and tenths) 328 x 54 =
300 x 50 = 1,500
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