Topic 1 - Plus
Around
"peri-" and "circum-"
Ms. Jaeckin had 3/4 of a bottle of solution in science class for an experiment she used 1/6 of the solution. How much of the bottle did she use?
1/8 bottle
Every place value is related to its neighbor by what key number?
10
4 1/3 as a fraction
13/3
3 1/4 x 6
19 1/2
A fraction has how many parts?
2
Simplifying before you start a multiplication problem requires you to look at the fractions how many ways?
2 regular and diagonal
Ms. B. walked 3/4 of the length of the Metropark trail before stopping to let Mia play in the river. The metropark trail was 3 1/2 miles long. How far did Ms. B. walk ?
2 5/8 miles
5^2
25
When multiplying decimals 0.4 x 0.17 how should we initially think of the problem?
4 x 17 , then count the decimal spaces after or estimate to insert correctly = 0.068
24/30 in simplest form
4/5
What is the reciprocal of 1 3/4
4/7
9 3/5 as a fraction
48/5
What is the reciprocal of 3/5?
5/3
1/4 x 7/8
7/32
Communative Property
A+B = B+A or AB = BA
To simplify fractions you must find
Common factors for the numerator and denominator
when adding the decimals 4.3 + 4.16 what must we do?
Line up the decimal points for place value 8.46
When subtracting the decimals 15 - 6.108 what must we do?
Line up the decimal points for place value 8.892
The top of a fraction is called what?
Numerator
Ms Banjoff's favorite word for multiply
OF
The easiest way to turn a whole number into a fraction
Put it over 1
What is the most important fact when multiplying fractions?
They must be in fraction form so 2 parts only.
Ants are one of the Thorny Devil Lizard's favorite foods. It can eat 45 ants per minute. How long would it take this lizard to eat 1,080 ants in minutes?
We would divide the total ants by how many in each minute to get 24
In 128.45 divided by 1.4, how far would you move the decimal point?
We would move the decimal 1 place because of the divisor
The divisor should always be what type of a number?
Whole
A set of rules or a process to solve a problem
algorithm
The bottom of a fraction is called what?
denominator
The answer to a subtraction problem
difference
The answer to a multiplication problem
product
The answer to a division problem
quotient
The answer to an addition problem
sum
2,548,901.67 The digit 4 is in what place value?
ten thousand
reciprocal
the multiplicative inverse of a number
Compatible numbers are
numbers that are friendly and easy to work with
Rational numbers
numbers that can be written as fractions, including terminating and repeating decimals, and integers