front 1 whole numbers | back 1 the set of counting numbers and zero (0, 1, 2, 3, 4, .....) |
front 2 thousandth | back 2 one of 1,000 equal parts; the third place to the right of the decimal point |
front 3 tenth | back 3 one of 10 equal parts; the first place to the right of the decimal point |
front 4 round | back 4 to approximate a number to a given place value |
front 5 reasonable | back 5 logical or sensible |
front 6 place value | back 6 the value determined by the position of a digit in a number |
front 7 mixed number | back 7 a number composed of a whole number and a fraction |
front 8 improper fraction | back 8 a fraction in which the numerator is greater than or equal to the denominator |
front 9 hundredth | back 9 one of 100 equal parts; the second place to the right of the decimal point |
front 10 front-end estimation | back 10 an estimation made using the front-end of a digit number |
front 11 fraction | back 11 a number that names a part of a whole or part of a group |
front 12 estimate | back 12 an answer that is close to the exact answer; to guess about |
front 13 digit | back 13 one of the symbols 0,1,2,3,4,5,6,7,8, and 9 used to write numbers |
front 14 decimal point | back 14 the dot used to separate the ones place from the tenths place in a decimal number |
front 15 decimal number | back 15 a number that uses a decimal point to show tenths, hundredths, and thousandths |
front 16 compensation | back 16 an estimation strategy in which numbers are rounded and then mentally adjusted |
front 17 compatible numbers | back 17 pairs of numbers that can be easily computed mentally |
front 18 approximate | back 18 to estimate; to come close to; almost exact or correct |