| A | B |
|---|
| pictograph | a graph that uses symbols to show data |
| grid paper | paper with horizontal and vertical lines |
| place value | the value given to the place a digit has in a number |
| estimate | to find a number that is close to an exact number |
| difference | the answer when subtracting |
| analog clock | a clock that displays time using hands |
| decimal point | a symbol used to separate the ones place from the tenths place in decimals, or dollars from cents in money |
| bar graph | a graph that uses bars to show data |
| variable | a letter that stands for a number or a range of numbers |
| digits | the symbols used to show numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 |
| rounding | replacing one number with another number that tells about how many or how much |
| compare | to decide which of two numbers is greater |
| digital clock | a clock that displays time using numbers |
| front-end estimation | a way to estimate a sum by adding the first digit of each addend and changing the result based on the rest of the digits |
| key | part of a pictograph that tells what each symbol stands for |
| ordered pair | a pair of numbers used to locate a point on a coordinate grid |
| sum | the answer when you add 2 digits |
| order | to arrange numbers from least to greatest or from greatest to least |
| addends | a number added to find a sum |
| scale | numbers that show the units used on a graph |
| coordinate grid | a graph used to locate points |
| expanded form | a way to write a number that shows the place value of each digit |
| standard form | a way to write a number that shows only its digits |
| word name | a way to show a number using words |
| ordinal number | a number used to tell order |
