| Range of Terms (top 100 most frequently used) |
Total | Textbook series (usage code) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | ||
| ADDITION (WHOLE NUMBER) | 12 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 3 | 3 | 3 | 3 |
| CIRCLE | 12 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| INCH | 12 | 3 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 3 | 3 |
| INEQUALITY (NUMBERS) | 12 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| LIQUID MEASURE | 12 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 2 |
| PLACE VALUE (NUMBERS) | 12 | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 |
| RECTANGLE | 12 | 3 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| SQUARE | 12 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| SUBTRACTION (WHOLE NUMBER) | 12 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 3 | 3 |
| TIME | 12 | 3 | 3 | 3 | 3 | 4 | 3 | 3 | 3 | 3 | 3 | 4 | 4 |
| TRIANGLE | 12 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| WORD PROBLEMS (WHOLE NUMBER) | 12 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| ADD AND SUBTRACTION RELATION | 11 | 2 | 2 | 3 | 3 | 2 | - | 2 | 2 | 3 | 3 | 3 | 3 |
| CENTIMETER | 11 | - | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| EVEN AND ODD NUMBER | 11 | 3 | 3 | 3 | - | 3 | 1 | 3 | 1 | 3 | 1 | 4 | 4 |
| MONEY | 11 | 3 | 3 | 3 | 3 | 4 | 3 | 3 | 3 | - | 3 | 4 | 4 |
| MULTIPLICATION (WHOLE NUMBER) | 11 | 3 | 2 | 3 | - | 3 | 3 | 2 | 3 | 3 | 3 | 4 | 4 |
| THREE ADDENDS (WHOLE NUMBER) | 11 | 3 | - | 2 | 2 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 3 |
| ADD. COMBINATIONS (WHOLE NUMBER) | 10 | 2 | 2 | 3 | 2 | - | 2 | 2 | 2 | 2 | 2 | 2 | - |
| BAR GRAPH (STATISTICS) | 10 | - | 3 | - | 2 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| COUNTING | 10 | 3 | 3 | - | 3 | 3 | 3 | 3 | 3 | - | 3 | 3 | 3 |
| FRACTION | 10 | - | 3 | 3 | - | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 |
| ORDERING (NUMBERS) | 10 | - | 3 | - | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| ORDINAL NUMBER | 10 | 3 | 3 | 3 | 3 | 3 | 3 | - | 3 | 3 | 3 | - | 4 |
| PICTOGRAPH (STATISTICS) | 10 | - | - | 2 | 2 | 2 | 3 | 2 | 3 | 2 | 3 | 4 | 4 |
| ADD BY REGROUPING (WHOLE NUMBER) | 9 | 2 | 3 | - | - | 2 | 2 | - | 4 | 3 | 2 | 4 | 3 |
| COMMUTATIVE (ADD.) (WHOLE NUMBER) | 9 | 3 | 3 | - | - | 2 | 2 | 2 | 2 | 2 | - | 2 | 2 |
| ONE HALF | 9 | 3 | - | 3 | 4 | 3 | 3 | 3 | 3 | 3 | - | - | 3 |
| PROBLEM SOLVING | 9 | 2 | 2 | - | - | 3 | 3 | 4 | 3 | - | 3 | 3 | 2 |
| SUBTRACTION (TWO PLACE) (WHOLE NUMBER) | 9 | - | - | - | 3 | 4 | 3 | 3 | 3 | 2 | 3 | 4 | 3 |
| UNIT LENGTH | 9 | - | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | - | - |
| AREA | 8 | 2 | - | - | - | 2 | - | 3 | 3 | 3 | 3 | 4 | 3 |
| CONE | 8 | - | - | - | 3 | 3 | 3 | 3 | 3 | 3 | - | 3 | 3 |
| CONGRUENT PARTS (FRACTION) | 8 | - | - | 2 | 2 | 2 | 2 | - | 2 | 2 | 2 | 2 | - |
| CYLINDER | 8 | - | - | - | 2 | 3 | 2 | 3 | 3 | 3 | - | 3 | 3 |
| INEQUALITY SIGN | 8 | - | - | 4 | - | 3 | 3 | 4 | 3 | - | 1 | 3 | 2 |
| MULTIPLES OF TWO | 8 | 2 | 2 | - | - | 2 | 2 | 2 | - | - | 2 | 2 | 2 |
| REPEATED ADDITION (WHOLE NUMBER) | 8 | 2 | - | - | - | 3 | 2 | 2 | 2 | 3 | 3 | - | 3 |
| SPHERE | 8 | - | - | - | 2 | 3 | 2 | 3 | 3 | 3 | - | 3 | 3 |
| TEMPERATURE | 8 | - | - | - | - | 2 | 3 | 3 | 3 | 1 | 3 | 3 | 3 |
| WEIGHT | 8 | 3 | - | - | - | 2 | 2 | 3 | 2 | 2 | - | 3 | 3 |
| WRITING NUMBERS | 8 | 2 | - | 3 | 3 | 2 | 3 | 3 | 3 | - | - | 3 | - |
| AFTER CONCEPT | 7 | 3 | - | - | - | 3 | 3 | 3 | - | 3 | - | 3 | 3 |
| BETWEENNESS (NUMBERS) | 7 | 3 | - | - | 3 | 3 | 3 | 3 | - | 3 | - | 3 | - |
| CUBE | 7 | - | - | - | 3 | 3 | - | 3 | 3 | 3 | - | 3 | 3 |
| DIVISION (WHOLE NUMBER) | 7 | - | - | 3 | - | 3 | - | 3 | 3 | 3 | - | 4 | 3 |
| MULTIPLES OF FIVE | 7 | 2 | 2 | - | - | 2 | 2 | 2 | - | - | 2 | 2 | - |
| NUMBER SENTENCE (EQUATION) | 7 | 3 | - | - | - | 3 | 3 | - | 2 | - | 3 | 3 | 3 |
| PERIMETER | 7 | - | - | - | - | 3 | 3 | - | 3 | 3 | 3 | 4 | 4 |
| RULER (MEASUREMENT) | 7 | - | - | 3 | - | 3 | 3 | - | 3 | 3 | 3 | 3 | - |
| SET | 7 | 3 | 3 | 3 | - | 3 | 3 | - | - | - | 3 | - | 3 |
| SHAPE (MEASUREMENT) | 7 | 3 | - | - | - | 3 | 3 | 3 | 3 | 3 | 3 | - | - |
| ADDEND (WHOLE NUMBER) | 6 | 3 | 3 | - | - | - | - | - | 3 | - | 3 | 3 | 3 |
| BEFORE CONCEPT | 6 | 3 | - | - | - | 3 | 3 | 3 | - | - | - | 3 | 3 |
| FACTOR (WHOLE NUMBER) | 6 | 3 | 3 | - | - | 3 | - | 3 | 3 | - | - | - | 3 |
| MEASUREMENT | 6 | - | 3 | 3 | - | - | 3 | - | - | 3 | - | 2 | 3 |
| NUMBER LINE (NUMBERS) | 6 | 3 | 3 | - | - | 3 | 3 | - | - | - | - | 3 | 3 |
| RECTANGULAR PRISM | 6 | - | - | - | 2 | - | 2 | - | 3 | 3 | - | 3 | 3 |
| RENAME NUMBERS | 6 | - | 2 | 3 | - | 2 | 3 | 3 | 2 | - | - | - | - |
| FAHRENHEIT SCALE | 5 | 2 | 2 | - | - | 3 | - | - | 3 | - | - | 3 | - |
| FOOT | 5 | 3 | 4 | - | - | - | - | 3 | - | - | - | 3 | 3 |
| MEASUREMENT (LENGTH ) | 5 | 3 | 3 | - | 3 | - | - | - | - | 3 | - | 3 | - |
| MULTIPLES OF TEN | 5 | 3 | 2 | - | - | - | - | 2 | - | - | 2 | 2 | - |
| SEQUENCE | 5 | 1 | - | 2 | 2 | - | - | 2 | - | - | 3 | - | - |
| ADD BY NUMBER LINE (WHOLE NUMBER) | 4 | 3 | 3 | - | - | - | - | - | - | - | - | 3 | 3 |
| COORDINATE SYSTEM | 4 | 2 | 2 | - | - | - | - | 2 | - | - | 2 | - | - |
| CROSS NUMBER GAME | 4 | - | - | - | - | 1 | - | 1 | 2 | 1 | - | - | - |
| EXPANDED FORM | 4 | - | 3 | - | - | - | - | - | 1 | - | 3 | - | 3 |
| LENGTH | 4 | - | - | - | - | 3 | - | - | - | - | 3 | 3 | 3 |
| MIXED OPERATIONS (WHOLE NUMBER) | 4 | - | - | - | - | 3 | 2 | - | 2 | - | 2 | - | - |
| MULT. BY GROUPING (WHOLE NUMBER) | 4 | - | - | - | 2 | - | - | - | - | - | 3 | 3 | 2 |
| MULT. PROPERTIES (WHOLE NUMBER) | 4 | - | 3 | - | - | - | - | - | 2 | 3 | - | 1 | - |
| PROBABILITY | 4 | - | - | - | - | - | - | 3 | 1 | - | 1 | - | 2 |
| SYMBOLS FOR MULTIPLICATION. | 4 | 2 | 3 | - | - | - | 3 | - | - | - | - | 2 | - |
| SYMMETRY (GEOMETRY) | 4 | 3 | 3 | - | - | - | 3 | - | - | - | - | 3 | - |
| UNIT AREA | 4 | - | - | - | - | - | - | 2 | 2 | 2 | - | 2 | - |
| CENTIGRADE SCALE | 3 | - | - | - | - | 2 | - | 2 | 2 | - | - | - | - |
| COLUMN ADDITION (WHOLE NUMBER) | 3 | - | - | - | - | - | - | 3 | 2 | - | 2 | - | - |
| DENOMINATOR | 3 | - | - | - | - | - | 2 | - | 2 | - | 2 | - | - |
| ESTIMATING SUMS (WHOLE NUMBER) | 3 | 3 | - | - | - | - | - | - | - | - | - | 3 | 4 |
| IDENTITY (ADDITION) (WHOLE NUMBER) | 3 | - | - | - | - | 2 | - | - | - | 2 | 2 | - | - |
| LINE SEGMENT | 3 | 3 | 4 | - | - | - | - | - | 1 | - | - | - | - |
| MAGIC SQUARE | 3 | - | - | - | - | - | - | - | 1 | 1 | - | - | 1 |
| MENTAL ARITHMETIC | 3 | - | - | - | - | - | 1 | - | - | 2 | - | 2 | - |
| MULT. COMBINATIONS (WHOLE NUMBER) | 3 | - | - | - | - | - | 2 | - | - | - | 2 | - | 2 |
| NUMERATOR | 3 | - | - | - | - | - | 2 | - | 2 | - | 2 | - | - |
| ORDERED PAIR (COORDINATE SYSTEM) | 3 | 2 | - | - | - | - | - | 2 | - | - | 2 | - | - |
| POINT | 3 | 3 | 3 | 2 | - | - | - | - | - | - | - | - | - |
| PYRAMID | 3 | - | - | - | - | - | 2 | - | - | - | - | 3 | 3 |
| RANGE (STATISTICS) | 3 | 2 | - | - | - | - | - | - | - | - | - | 4 | 4 |
| REPEATED SUBTRACTION (WHOLE NUMBER) | 3 | 2 | - | - | - | - | - | - | - | - | - | 2 | 3 |
| RIGHT ANGLE | 3 | - | 3 | 3 | - | - | - | - | - | - | 2 | - | - |
| ROUNDING | 3 | - | - | - | - | - | 1 | - | - | 1 | - | 3 | - |
| SIZE (MEASUREMENT) | 3 | - | - | - | - | - | 3 | 3 | - | 3 | - | - | - |
| TABLES (STATISTICS) | 3 | - | - | - | - | - | - | - | 3 | - | - | 3 | 3 |
| WORD PROBLEM (FRACTION) | 3 | - | - | - | - | - | - | - | - | 2 | 2 | - | 2 |
| ANGLE | 2 | - | - | 3 | - | - | - | - | - | - | - | - | 3 |
| APPROXIMATION (MEASUREMENT) | 2 | - | - | - | - | 2 | 2 | - | - | - | - | - | - |
| ASSOCIATIVE (ADD.) (WHOLE NUMBER) | 2 | 2 | 3 | - | - | - | - | - | - | - | - | - | - |
| BRACE NOTATION (SET) | 2 | 2 | 3 | - | - | - | - | - | - | - | - | - | - |