Place Value
What three letters are always at the end of a place value in the decimals place?
-ths!
Round to the nearest whole number.
4.215
4
When writing ordered pairs, do you go to the right first or do you go up first?
To the right!
What is the #1 rule for adding decimals?
ALWAYS line up the decimals!!!
What is the #1 rule for subtracting decimals?
ALWAYS line up the decimals!!!
Which is greater, 0.09 (nine hundredths) or 0.1 (one tenth)?
0.1 (one tenth)
Round to the nearest tenth.
7.862
7.9
Which two lines do you need to make a coordinate grid?
An x-axis and a y-axis
What is 2.5 + 3.2?
5.7
What is 6.8 - 3.1?
3.7
What number would you get if the underlined digit was 1/10 the original size?
4.8
4.08
Round to the nearest hundredth.
3.137
3.14
What is the ordered pair for the origin?
(0,0)
What is 6.1 + 3.92?
10.02
What is 12.48 - 2.37?
10.11
What number would you get if the underlined number was 10 times the original size?
7.053
7.503
Round to the nearest underlined place value and name the place value.
6.139
6.1, the tenths place value
What is the ordered pair? Rule: Multiply the first number by 5.
X Y
2 7
? ?
What is 4.116 + 3.148?
7.264
What is 7.49 - 3.81?
3.62
Which number is smaller? By how much?
3.518 or 3.522?
3.518, 0.004 smaller
Round to the nearest underlined place value and name the place value.
75.3782
75.378, the thousandths place value
How many ordered pairs does it take to make a rectangle?
4
What is 15.32 + 21.642?
36.962
What is 5.216 - 1.837?
3.379