Multiplying and Dividing Decimals by Powers of Ten
9 months ago
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  • Question 1
    120 seconds
    Q.

    When you multiply decimals by powers of ten,

    answer choices

    take a good guess

    smile, chances are you'll get one right

    use the Zero Rule and pretend the decimal isn't there

    there's a short cut to use if you understand, we have a base ten math system

  • Question 2
    120 seconds
    Q.

    Find the example of a question where you would use the Zero Rule

    answer choices

    42 x 19

    40 x 1.5

    400 x 20

    4.56 x 1,000

  • Question 3
    120 seconds
    Q.

    When you multiply decimals by powers of ten,

    answer choices

    add as many zeroes as you see

    count the number of zeroes

    move the decimal, however many zeroes are in the power of ten number

    move the decimal wherever you want

  • Question 4
    120 seconds
    Q.

    Solve. 3.40 x 100

    answer choices

    3.40

    34.0

    340

    3,400

  • Question 5
    120 seconds
    Q.

    How do you know which direction to move the decimal?

    answer choices

    Guess! You have a 50% chance of getting it right

    It doesn't matter. Math has many right answers.

    Sing the song!

    Ask your teacher.

  • Question 6
    120 seconds
    Q.

    Which way do you move the decimal when you multiply by powers of ten?

    answer choices

    to the left

    to the right

  • Question 7
    120 seconds
    Q.

    Which way do you move the decimal when you divide by powers of ten?

    answer choices

    to the right

    to the left

  • Question 8
    120 seconds
    Q.

    Solve: 0.08 x 10,000

    answer choices

    .08

    80

    800

    8,000

  • Question 9
    120 seconds
    Q.

    Solve: 50 x 3,000

    answer choices

    15,000.0

    150.00

    1,500,000

    150,000

  • Question 10
    120 seconds
    Q.

    Do you like Kahoot or Quizizz better?

    answer choices

    Kahoot

    the new Quizizz

  • Question 11
    120 seconds
    Q.

    Solve. 8.6 x 100

    answer choices

    8.6

    860

    8,600

    .086

  • Question 12
    120 seconds
    Q.

    Solve. 5.42 divided by 10

    answer choices

    54.2

    .542

    .0542

    542

  • Question 13
    120 seconds
    Q.

    Divide 85 into 100 groups

    answer choices

    8.5

    85

    850

    .85

    .085

  • Question 14
    120 seconds
    Q.

    3 divided by 10

    answer choices

    3

    .3

    .03

    30

  • Question 15
    120 seconds
    Q.

    5 divided by 100

    answer choices

    .5

    .05

    .005

    500

  • Question 16
    120 seconds
    Q.

    Multiply .3 x 8

    answer choices

    24

    2.4

    .24

    240

  • Question 17
    60 seconds
    Q.

    . _ x ._ Look at this problem, where would you put the decimal in the answer? How would the answer look?

    answer choices

    . _

    _ _ .

    . _ _

    . _ _ _

  • Question 18
    120 seconds
    Q.

    76.3 divided by 1,000

    answer choices

    7.63

    .763

    .0763

    .oo763

  • Question 19
    120 seconds
    Q.

    Divide 745 into 10 groups. Hint: What do you do if you don't see the decimal?

    answer choices

    7,450

    745

    74.5

    7.45

  • Question 20
    120 seconds
    Q.

    .654 x 1,000=

    answer choices

    .645

    645

    .000645

    6.45

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