Vocabulary
The number located at the bottom of a fraction is called?
45.64+58
103.64
3.75x6
22.5 or 22.50
Solve: 1/3 x 2/6
Note: Make sure you simplify.
1/9
DOUBLE JEOPARDY: How do you divide with mixed numbers?
What is a mixed number?
A whole number and a fraction.
2 1/3
12.5+673.75
686.25
128.8/1.4
92
Solve: 8 / 2/5
20
3 1/2 x 4 2/3
16 1/3
What place is this behind the decimal? ##.##3##
Thousandths
15-6.108
8.892
How do you multiply decimals?
When multiplying decimals you line the numbers up, solve the problem and count the amount of numbers behind the decimal in the original problem to place that many behind the decimal in the product.
Look at the problem below
2/7 x 3/5
2/7 x 5/3
10/21
What is the mistake?
The second fraction is flipped, you don't do that while multiplying fractions.
Carl writes 14/3 × 7/3 to find the quotient of 4 2/3 / 2 1/3. What is his mistake?
Carl didn't flip 7/3 to 3/7.
Is pi; 3.14159265359 a rational number? If not, what is a rational number?
No, a rational number can be written in the form a/b.
DOUBLE JEOPARDY:
How is adding and subtracting decimals different than adding and subtracting whole numbers?
When adding and subtracting decimals, you line the decimals up, annex (add) zeros if needed then solve. When adding and subtracting whole numbers you line up by place value, regroup if needed and solve.
How do you divide decimals?
Make the divisor a whole number by moving the decimal to the right, then move the decimal in the dividend the same amount of spaces and move it up into the quotient, then solve.
4 / 3/2 the same as 4 / 2/3? Explain
No,
4 / 3/2 becomes 4/1 x 2/3 while
4 / 2/3 becomes 4/1 x 3/2
Solve 6 / 2 1/2
2 7/12
FINAL JEOPARDY:
What day is the Topic 1 Test!?!?
Tomorrow or Tuesday or AHHHHHHHHHH!!!!!