| 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 | 3 | 3 | 3 | 4 | 3 |
| MONEY | 12 | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 2 | 3 |
| ORDERING (NUMBERS) | 12 | 3 | 3 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| SUBTRACTION (WHOLE NUMBER) | 12 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 |
| TIME | 12 | 3 | 3 | 3 | 3 | 4 | 3 | 3 | 3 | 3 | 3 | 4 | 4 |
| WRITING NUMBERS | 12 | 2 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 3 |
| ADD. COMBINATIONS (WHOLE NUMBER) | 11 | 2 | 2 | 3 | - | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| CENTIMETER | 11 | - | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| CIRCLE | 11 | 3 | - | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| INCH | 11 | 3 | 3 | 3 | 3 | - | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| INEQUALITY (NUMBERS) | 11 | 2 | - | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| ONE HALF | 11 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 4 | 3 |
| PLACE VALUE (NUMBERS) | 11 | 3 | 2 | 3 | 2 | 3 | 3 | 2 | 2 | - | 3 | 2 | 2 |
| RECTANGLE | 11 | 3 | - | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| TRIANGLE | 11 | 3 | - | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| COMMUTATIVE (ADD.) (WHOLE NUMBER) | 10 | 2 | 3 | - | - | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| CONCEPT OF ZERO | 10 | - | - | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 |
| COUNTING | 10 | 2 | 3 | - | - | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 3 |
| LIQUID MEASURE | 10 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 2 | - | 2 | 2 | - |
| BAR GRAPH (STATISTICS) | 9 | - | 3 | 3 | - | 3 | 3 | 3 | 3 | - | 3 | 4 | 3 |
| CONGRUENT PARTS (FRACTION) | 9 | - | - | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | - |
| LENGTH | 9 | - | - | - | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| ORDINAL NUMBER | 9 | 2 | - | 3 | - | 3 | 3 | 2 | 3 | 3 | 3 | - | 4 |
| SQUARE | 9 | 3 | - | - | 3 | 3 | 3 | - | 3 | 3 | 3 | 3 | 3 |
| WORD PROBLEMS (WHOLE NUMBER) | 9 | 2 | - | 2 | - | 2 | 2 | 2 | 2 | - | 2 | 2 | 2 |
| ADD AND SUBTRACTION RELATION | 8 | 3 | 2 | 3 | 3 | 2 | - | 2 | - | - | - | 3 | 3 |
| AFTER CONCEPT | 8 | 3 | 3 | - | - | 3 | 3 | 3 | - | 3 | - | 3 | 3 |
| BEFORE CONCEPT | 8 | 3 | 3 | - | - | 3 | 3 | 3 | - | 3 | - | 3 | 3 |
| FRACTION | 8 | - | 3 | 3 | - | 3 | - | 3 | 3 | - | 3 | 3 | 4 |
| NUMBER SENTENCE (EQUATION) | 8 | 3 | - | - | - | 3 | 3 | 2 | 3 | - | 3 | 2 | 3 |
| PROBLEM SOLVING | 8 | - | - | - | - | 3 | 3 | 1 | 3 | 3 | 3 | 3 | 4 |
| SUBTRACTION (TWO PLACE) (WHOLE NUMBER) | 8 | - | - | - | - | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 |
| THREE ADDENDS (WHOLE NUMBER) | 8 | - | - | 2 | 2 | - | - | 2 | 3 | 2 | 2 | 2 | 2 |
| CONE | 7 | - | - | - | 3 | 3 | 3 | - | 3 | 3 | - | 3 | 3 |
| MATCHING(SET) | 7 | - | 3 | 3 | 2 | - | 3 | 2 | 3 | - | 3 | - | - |
| SIZE (MEASUREMENT) | 7 | 2 | 3 | 3 | - | 3 | 3 | 3 | 3 | - | - | - | - |
| SPHERE | 7 | - | - | - | 2 | 3 | 2 | - | 2 | 3 | - | 3 | 3 |
| UNIT LENGTH | 7 | - | - | 2 | - | 2 | 2 | 2 | 2 | 2 | 2 | - | - |
| COLUMN ADDITION (WHOLE NUMBER) | 6 | 2 | - | - | - | 3 | - | - | 2 | - | 2 | 2 | 2 |
| COMPARISON (MEASUREMENT) | 6 | - | - | 3 | 3 | 3 | 3 | - | - | - | 2 | 3 | - |
| CYLINDER | 6 | - | - | - | - | 3 | 2 | - | 2 | 3 | - | 3 | 3 |
| PICTOGRAPH (STATISTICS) | 6 | - | - | - | 2 | - | 3 | 2 | - | 3 | - | 2 | 2 |
| RENAME NUMBERS | 6 | 3 | 2 | - | - | 2 | 2 | - | 2 | - | 2 | - | - |
| WEIGHT | 6 | - | - | - | - | 3 | 3 | 3 | - | 2 | - | 3 | 3 |
| ADD BY NUMBER LINE (WHOLE NUMBER) | 5 | 3 | 3 | 3 | - | - | - | - | - | - | - | 3 | 3 |
| ADDEND (WHOLE NUMBER) | 5 | 2 | - | 3 | - | - | - | 3 | - | - | - | 3 | 3 |
| CUBE | 5 | - | - | - | - | 3 | - | - | 3 | 3 | - | 3 | 3 |
| EVEN AND ODD NUMBER | 5 | 3 | 3 | - | - | - | - | - | - | 1 | - | 1 | 3 |
| MULTIPLES OF FIVE | 5 | - | - | - | - | 2 | 2 | 2 | - | - | 2 | 2 | - |
| MULTIPLES OF TWO | 5 | 2 | - | - | - | 2 | 2 | 2 | - | - | 2 | - | - |
| NUMBER LINE (NUMBERS) | 5 | 3 | 3 | - | - | - | - | - | - | 3 | - | 2 | 2 |
| RULER (MEASUREMENT) | 5 | - | - | - | - | 3 | 3 | - | 3 | - | 3 | 3 | - |
| SEQUENCE | 5 | 2 | 3 | 2 | - | - | 3 | - | - | - | 3 | - | - |
| SHAPE (MEASUREMENT) | 5 | - | - | - | - | 3 | 3 | 3 | 3 | - | 3 | - | - |
| TEMPERATURE | 5 | - | - | - | - | 3 | 3 | 1 | - | - | - | 1 | 3 |
| BETWEENNESS (NUMBERS) | 4 | - | - | - | - | - | 3 | 3 | - | 3 | - | 3 | - |
| INEQUALITY SIGN | 4 | - | - | - | - | - | - | - | 3 | - | 1 | 4 | 2 |
| RECTANGULAR PRISM | 4 | - | - | - | - | - | 2 | - | 2 | - | - | 3 | 3 |
| SET | 4 | 3 | 3 | 3 | - | - | 3 | - | - | - | - | - | - |
| SYMBOLS FOR ADDITION | 4 | - | 2 | - | - | - | 3 | - | - | 3 | - | 2 | - |
| SYMMETRY (GEOMETRY) | 4 | - | - | - | - | - | 3 | - | - | 3 | 1 | 3 | - |
| APPROXIMATION (MEASUREMENT) | 3 | 2 | - | - | - | - | - | 2 | 2 | - | - | - | - |
| ASSOCIATIVE (ADD.) (WHOLE NUMBER) | 3 | 3 | 3 | - | - | - | - | - | - | - | - | - | 2 |
| EQUIVALENT SETS | 3 | 3 | 3 | 3 | - | - | - | - | - | - | - | - | - |
| GRAPH (STATISTICS) | 3 | - | - | - | - | - | - | - | - | - | 3 | 3 | 3 |
| MEASUREMENT | 3 | - | - | 3 | - | - | 3 | - | - | - | - | - | 3 |
| MEASUREMENT (LENGTH ) | 3 | 2 | 3 | - | 3 | - | - | - | - | - | - | - | - |
| PIE APPROACH (FRACTION) | 3 | - | - | - | 2 | 2 | 2 | - | - | - | - | - | - |
| PROBABILITY | 3 | - | - | - | - | - | - | 1 | 1 | - | - | - | 1 |
| CAPACITY | 2 | - | - | - | - | - | - | - | - | 2 | - | 3 | - |
| CLOSED CURVE | 2 | 2 | 3 | - | - | - | - | - | - | - | - | - | - |
| COMPUTER (PROBLEM SOLVING) | 2 | - | - | - | - | - | 2 | 3 | - | - | - | - | - |
| EQUALITY (NUMBER) | 2 | - | - | - | 2 | - | - | 2 | - | - | - | - | - |
| ESTIMATING SUMS (WHOLE NUMBER) | 2 | 3 | - | - | - | - | - | - | - | - | - | - | 2 |
| EXPANDED FORM | 2 | 2 | 3 | - | - | - | - | - | - | - | - | - | - |
| FACE (POLYHEDRON) | 2 | - | - | - | - | - | - | - | - | - | - | 3 | 2 |
| INSIDE AND OUTSIDE (POLYGON) | 2 | - | 3 | - | - | 3 | - | - | - | - | - | - | - |
| LINE | 2 | 3 | - | 3 | - | - | - | - | - | - | - | - | - |
| LINE SEGMENT | 2 | 3 | 4 | - | - | - | - | - | - | - | - | - | - |
| MAP INTERPRETATION (MEASUREMENT) | 2 | - | - | - | - | 2 | 2 | - | - | - | - | - | - |
| MENTAL ARITHMETIC | 2 | - | - | - | - | - | 1 | - | - | - | - | 1 | - |
| MIXED OPERATIONS (WHOLE NUMBER) | 2 | - | - | - | - | - | 2 | - | - | - | 2 | - | - |
| MULTIPLES OF TEN | 2 | - | - | - | - | - | 2 | 2 | - | - | - | - | - |
| NUMBER AND NUMERAL | 2 | 3 | 3 | - | - | - | - | - | - | - | - | - | - |
| PYRAMID | 2 | - | - | - | - | - | - | - | - | - | - | 3 | 3 |
| STANDARD UNIT (MEASUREMENT) | 2 | - | - | - | - | - | 2 | - | 2 | - | - | - | - |
| SUBSET REMOVAL | 2 | 2 | 2 | - | - | - | - | - | - | - | - | - | - |
| SYMMETRY (TRANSFORMATION GEOMETRY) | 2 | - | - | - | - | 1 | - | - | 3 | - | - | - | - |
| TABLES (STATISTICS) | 2 | - | - | - | - | - | - | - | 3 | - | - | 2 | - |
| ADD BY REGROUPING (WHOLE NUMBER) | 1 | - | - | - | - | - | - | - | - | - | - | - | 3 |
| AREA | 1 | - | - | - | - | - | - | - | - | - | 3 | - | - |
| BRACE NOTATION (SET) | 1 | - | 3 | - | - | - | - | - | - | - | - | - | - |
| CARDINAL NUMBER | 1 | - | 3 | - | - | - | - | - | - | - | - | - | - |
| CENTIGRADE SCALE | 1 | - | - | - | - | 2 | - | - | - | - | - | - | - |
| CROSS NUMBER GAME | 1 | - | - | - | - | - | - | - | 1 | - | - | - | - |
| CURVE | 1 | 2 | - | - | - | - | - | - | - | - | - | - | - |
| DRAWING LINES | 1 | - | 3 | - | - | - | - | - | - | - | - | - | - |
| EMPTY SET | 1 | - | 3 | - | - | - | - | - | - | - | - | - | - |
| EQUAL SETS | 1 | 3 | - | - | - | - | - | - | - | - | - | - | - |
| EQUATION | 1 | - | 3 | - | - | - | - | - | - | - | - | - | - |