Unit 7 Math - Base Ten Algebraic Thinking

Tens of Tenths

100

What is the value of the expression?
58.234 x 100?

5,823.4

200

An equation is shown. ? x 1/100 = 5.234
What is the missing value?

523.4

300

An equation is shown. 62.7 x ? = 0.627
What is the value of the missing number?

1/100

400

5.492 x 10^?= 54.92

1

500

9731.62 ÷ 10^? = 9.73162

3

Power-ful

100

What is 31.756 x 10²?

3,175.6

200

What is 34,952.3 ÷ 10²?

349.523

300

When dividing a number by 10³, how is the decimal point moved? How do you know?

3 places to the left!
Division = Left
Exponent = 3, or a 1 with 3 zeroes. 

400

True or false?

91.743 x 10¹ = 91.7430

FALSE - 91.743 x 10 = 917.43, What was the mistake?

500

True or False?

5.92 x 10⁰=5.92

TRUE! 10⁰ = 1.
5.92 x 1 = 5.92

Value-ables

100

What is the place value of the digit 7 in the number below?

33.572

HundredTHS

200

How many times greater is the tenths than the hundredths?

10

300

How many times greater is the 3 in 3.97 than the 3 in 81.34?

10 times greater

400

How does the 5 in the number 18.75 compare to the 5 in the number 75.12?

The five in 18.75 is one-hundredth of the five in 75.12

500

Which statements about the values 0.034 and 3.40 are true?
a) 0.034 is 1/10 of 340
b) 0.034 is 100 times more than 340
c) 3.40 is 100 times more than 0.034
d) 0.034 is 1/100 of 3.4

C) 3.40 is 100 times more than 0.034
and
D) 0.034 is 1/100 of 3.4

Round Robin

100

What is 32.519 rounded to the nearest tenth?

32.500

200

What is 659.82 rounded to the nearest whole number?

660.00

300

What is 20.165 rounded to the nearest tenth?

20.200

400

Maggie says 564.56 rounded to the nearest tenth is 560.50. Is she correct?

No! Correct answer: 564.60.
What did she do wrong? 

500

Select all numbers that round to 16.45 when rounded to the nearest hundredth.
a) 6.4645
b) 16.447
c)  6.450
d) 16.542
e) 16.449

B and E

Hungry, hungry, Alligators

100

Compare

56.432 ___ 56.325

> (greater than)

200

Compare

6.323 ____ 6.332

< (less than)

300

Compare

65.791 _____ 65.797

< (less than)

400

Put the following numbers in order from least to greatest.

25.167; 25.162; 24.945; 24.185; 26.281

24.185
24.945
25.162
25.167
26.281

500

Put the following numbers in order from greatest to least.
6.159; 6.234; 6.284; 6.248; 6.815; 6.401

6.815
6.401
6.284
6.248
6.234
6.159