Equations
9 X 4 =
36
3/7 = ?/21
3/7 = 9/21
How long do American Crows live?
7-8 years
In a fraction, the number above the fraction bar that represents a certain part of the whole.
Numerator
144 divide 12
12
25/30 = 5/?
25/30 = 5/6
How many gill slits does a great white shark have?
5 gill slits
Operations that undo each other.
Inverse Operations
72 X 49 =
3,528
52/8
6 4/8
Which bird has the largest eyes?
The ostrich. It's eye is twice as big as a human eye!
A number written as the sum of the value of its digits.
Example: 400 + 20 + 3 = 423
Expanded Form
4,926 divide 5 =
985 R1
19 4/11
213/11
What does AM and PM stand for?
Ante-meridiem
Post-meridiem
The word "meridiem" means mid-day so the words mean before mid-day and after-mid day
Numbers that when multiplied together get a certain product.
Factors
7,274 divide 4 =
1,818 R2
7 3/12 - 4 7/12 =
2 8/12
When you donate blood, you are donating blood plasma and red blood cells. How long does it take to recover from giving blood?
The plasma is replaced in 24 hours and the red blood cells are replaced in 4 to 6 weeks.
A process that determines which multiple of 10, 100, 1,00, and so on a number is closest to.
Rounding