Decimals
What do you do when you are adding or subtracting decimals?
Line em up or stack em up
Is 21 prime or composite?
Composite
Round to the hundredths place: 5.432
5.43
12 X 12 =
144
what is the opposite of division?
multiplication
What is the one job of the decimal?
Separate the ones place from the tenths place.
Are all even numbers composite numbers?
No!
Round the the hundreds place: 186
200
Add carefully! 385 + 637 = ?
1022
36 ÷ 4
9
What is the name of the decimal?
"and"
what are the prime numbers between 20 and 30?
23, 29
Round to the ten thousands place: 3,168,234
3,170,000
Subtract carefully! 8,014 - 3,916 = ?
4098
900 ÷ 10
90
What do you do when you are multiplying decimals?
count the indentions, count the number of digits behind the demical point
Give 2 numbers that are neither prime or composite?
0 and 1
Round to the thousandths place: 5.6435
5.644
What is the answer to a multiplication problem?
Produdct
What is a dividend?
Total number being divided
what do you do with the decimals when you are dividing?
You take the decimal point straight up and use straight division
What is a prime number?
Numbers that have ONLY 2 factors.....1 and itself
What are compatible numbers?
Numbers that are easy to add, subtract, multiply, or divide
Divide carefully! 168 ÷ 12 = ?
14
1543 ÷ 4
385.75