Working with Numbers
Write/Say this number using words:
43,684,325
AND
Write this number using digits:
five hundred twenty-five million, sixty-eight thousand, forty-seven
Hint: Remember, "and" = decimal point
forty-three million, six hundred eighty-four thousand, three hundred twenty-five
(commas and dashes not required)
525,069,047
415
x 654
271,410
3/4 + 1/3
1 1/12
6/7 - 1/2
5/14
Write these decimals using words:
a. 3.4 b. 5.004
a. three and four tenths
b. five and four thousandths
Change the following measures:
96 oz = _____ lb (16 oz = 1 lb)
40 qt = _____ pk (8 dry qt = 1 pk)
4 sq. ft. = _____ sq. in. (1 sq ft = 144 sq in)
96 oz = 6 lb (16 oz = 1 lb)
40 qt = 5 pk (8 dry qt = 1 pk)
4 sq. ft. = 576 sq. in. (1 sq ft = 144 sq in)
What is the value of the 4 in the number 143?
40 (or "the tens place" is acceptable)
$115.87
x 35
$4,055.45
Find the greatest common factor of each set
a. 20, 28 b. 36, 60
a. 4
b. 12
Find the least common multiple of each set.
a. 10, 25 b. 10, 12
a. 50
b. 60
3.913
4.9
185.56
+ 6.0926
200.4656
Change the following measures:
3 ft = _____ in
7 hr = _____ min
7 gal = ______ qt
No hints...these are units you ought to memorize.
3 ft = 36 in
7 hr = 420 min
7 gal = 28 qt
Round the following number to the nearest ten, thousand, and million:
3,478,832
ten:3,478,830
thousand:3,479,000
million:3,000,000
1,356-:25
54 R 6
9 1/5 - 4 2/3
4 8/15
3 3/8 + 5 1/2
8 7/8
381.9
- 8.9251
372.9749
Solve these problems on compound English measures:
5 lb 4 oz 3 gal 1 qt
+ 2 lb 13 oz - 1 gal 2 qt
Addition: 8 lb 13 oz
Subtraction: 1 gal 3 qt
382
493
812
+ 413
2,100
47,823-:121
395 R 28
2 2/5 xx 3 3/4
9
Write <, >, or =.
a. 3/5 ____ 3/4
b. 0.12 _____ 0.1025
a. 3/5 < 3/4
b. 0.12 > 0.1025
3.51
x 0.31
1.0881
City Population
Mexico City, Mexico 10,263,275
Seoul, South Korea 9,645,932
Tokyo, Japan 8,353,674
Moscow, Russia 8,275,000
Bombay, India 8,227,332
City Population
Mexico City, Mexico 10,263,275 - 10 symbols
Seoul, South Korea 9,645,932 -10 symbols
Tokyo, Japan 8,353,674 - 8 symbols
Moscow, Russia 8,275,000 - 8 symbols
Bombay, India 8,227,332 - 8 symbols
$4,812.84
- 2,980.79
$1,832.05
Glenda received these grades in English one week: 88%, 90%, 83%, 95%, and 80%. What was her average grade for the week, to the nearest whole percent?
87%
Convert the fraction to decimal and the decimal to fraction in lowest terms.
3/8 0.85
3/8 = 0.375
0.85 = 17/20
4 1/6 -: 1 2/3
2 1/2
0.131
x 0.3
0.0393
Find the prime factors of these composite numbers.
a. 18 b. 60
Hint: # = ____ x ____ x ____ x ....
a. 18 = 2 x 3 x 3
b. 60 = 2 x 2 x 3 x 5