Ratios can be written in 3 ways:
with the word “” using a
as a _
to, colon, fraction
a recipe calls for 2 eggs for every 3 cups of milk
express this in a ratio three different ways
2 to 3, 2:3, 2/3
should ratios be reduced like fractions?
YES
write the ratio 1/3 to 2 in its simplest form
1/3 x 3 = 1
2×3 = 6
1:6
consider the following: the ratio of boys to girls in the 11th grade class is 5:4. If there are
a total of 270 11th grade students, how many are there girls?
5 + 4 = 9
girls: 4/9
boys: 5/9
4/9 = x/270
x = 120
for the number: 682,174.953
digit 8 is in which place and what is its value?
digit 5 is in which place and what is its value?
ten-thousands, 80,000
hundreds, .05 or 5/100
in accordance with the base-10 system, the value of a digit increases by a factor of _
each place it moves to the left.
10
1 / 2
Base-10 system:
consider the number 7, moving the digit one place to the left (70) increases its value by
a factor of 10.
what happens when you:
move the number 7 two places to the left?
move the number 7 three places to the left?
700 (7x10x10)
7,000 (7x10x10x10)
base-10 system:
conversely, the value of a digit _ by a factor of 10 each place it moves to the right.
10
base-10 system:
consider the number 40, moving the digit one place to the right (4) decreases its value
by a factor of 10.
what happens when you:
move the number 40 two places to the right?
move the number 40 three places to the right?
0.4 (4/10/10)
0.04 (4/10/10/10)
10^0?
1
10^6?
10x10x10x10x10x10
when utilizing powers of ten, the number 872,349 is decomposed to?
(8×10^5) + (7×10^4) + (2×10^3) + (3×10^2) + (4×10^1) + (9 x 10^0)
round the number 746,311 to the nearest ten thousand
750,000
round the number 746,311 to the nearest hundred
746,300
round the number 3.752891 to the nearest thousandth
3.753
.33 repeated is?
1/3
what is the improper fraction of 4 1/2 and 7 2/3?
9/2 and 23/3