| | Performance scale scores |
| United States | 270 | ( 0.4) | 282 | ( 0.3) | 279 | ( 0.4) |
| Alabama | 257 | ( 2.7) | 271 | ( 2.9) | 260 | ( 1.9) |
| Alaska | ‡ | ( ‡) | ‡ | ( ‡) | ‡ | ( ‡) |
| Arizona | 274 | ( 1.5) | 276 | ( 2.5) | 272 | ( 5.0) |
| Arkansas | 271 | ( 3.0) | 275 | ( 2.3) | 271 | ( 1.5) |
| California | 267 | ( 1.0) | 269 | ( 1.1) | 275 | ( 2.6) |
| Colorado | 273 | ( 2.5) | 287 | ( 1.3) | 279 | ( 2.6) |
| Connecticut | 257 | ( 3.3) | 288 | ( 1.3) | 291 | ( 2.5) |
| Delaware | 274 | ( 1.8) | 282 | ( 0.7) | 282 | ( 1.2) |
| District of Columbia | 245 | ( 0.9) | ‡ | ( ‡) | ‡ | ( ‡) |
| Florida | 270 | ( 2.2) | 274 | ( 1.5) | 279 | ( 2.6) |
| Georgia | 258 | ( 2.4) | 278 | ( 1.8) | 271 | ( 2.1) |
| Hawaii | 270 | ( 1.3) | 266 | ( 1.0) | 260 | ( 1.4) |
| Idaho | 285 | ( 1.3) | 278 | ( 1.5) | 280 | ( 1.3) |
| Illinois | 267 | ( 2.3) | 284 | ( 1.6) | 280 | ( 1.9) |
| Indiana | 272 | ( 2.1) | 286 | ( 1.5) | 284 | ( 1.7) |
| Iowa | 275 | ( 2.0) | 289 | ( 2.2) | 286 | ( 1.1) |
| Kansas | 277 | ( 2.8) | 287 | ( 1.9) | 285 | ( 1.4) |
| Kentucky | 276 | ( 3.8) | 276 | ( 2.7) | 272 | ( 1.1) |
| Louisiana | 258 | ( 2.9) | 273 | ( 1.8) | 271 | ( 1.6) |
| Maine | 283 | ( 2.1) | 287 | ( 2.1) | 279 | ( 1.1) |
| Maryland | 266 | ( 3.2) | 279 | ( 1.3) | 285 | ( 2.8) |
| Massachusetts | 273 | ( 1.2) | 298 | ( 1.2) | 299 | ( 3.1) |
| Michigan | 262 | ( 4.2) | 284 | ( 1.8) | 280 | ( 2.4) |
| Minnesota | 281 | ( 2.9) | 295 | ( 1.6) | 289 | ( 1.9) |
| Mississippi | 256 | ( 2.8) | 265 | ( 2.0) | 262 | ( 1.5) |
| Missouri | 264 | ( 4.2) | 279 | ( 1.5) | 280 | ( 1.9) |
| Montana | 287 | ( 1.1) | 288 | ( 1.5) | 286 | ( 1.1) |
| Nebraska | 283 | ( 1.6) | 281 | ( 2.4) | 286 | ( 1.3) |
| Nevada | 270 | ( 1.1) | 268 | ( 1.5) | 272 | ( 1.7) |
| New Hampshire | 279 | ( 1.4) | 287 | ( 1.3) | 286 | ( 1.5) |
| New Jersey | ‡ | ( ‡) | 285 | ( 1.4) | 291 | ( 2.9) |
| New Mexico | 267 | ( 1.4) | 263 | ( 1.7) | 260 | ( 1.6) |
| New York | 266 | ( 1.4) | 291 | ( 1.2) | 287 | ( 2.9) |
| North Carolina | 282 | ( 2.0) | 284 | ( 1.8) | 281 | ( 1.5) |
| North Dakota | 289 | ( 1.5) | 288 | ( 1.5) | 286 | ( 0.6) |
| Ohio | 262 | ( 2.5) | 290 | ( 1.6) | 287 | ( 1.6) |
| Oklahoma | 266 | ( 3.8) | 277 | ( 1.7) | 269 | ( 1.3) |
| Oregon | 282 | ( 2.6) | 283 | ( 1.3) | 281 | ( 1.3) |
| Pennsylvania | 263 | ( 3.3) | 286 | ( 2.2) | 282 | ( 1.7) |
| Rhode Island | 254 | ( 1.3) | 281 | ( 0.9) | 286 | ( 1.9) |
| South Carolina | 278 | ( 2.6) | 286 | ( 1.1) | 278 | ( 1.4) |
| South Dakota | 286 | ( 1.3) | 288 | ( 2.8) | 288 | ( 0.7) |
| Tennessee | 263 | ( 2.4) | 276 | ( 2.4) | 272 | ( 1.5) |
| Texas | 278 | ( 1.0) | 285 | ( 1.0) | 282 | ( 1.6) |
| Utah | 277 | ( 1.9) | 279 | ( 1.0) | 281 | ( 2.2) |
| Vermont | ‡ | ( ‡) | ‡ | ( ‡) | ‡ | ( ‡) |
| Virginia | 278 | ( 1.7) | 289 | ( 1.5) | 282 | ( 2.8) |
| Washington | 285 | ( 2.0) | 286 | ( 1.6) | 284 | ( 1.8) |
| West Virginia | 277 | ( 2.9) | 274 | ( 1.6) | 265 | ( 1.1) |
| Wisconsin | 274 | ( 2.6) | 292 | ( 1.8) | 286 | ( 1.7) |
| Wyoming | 281 | ( 1.4) | 293 | ( 3.8) | 282 | ( 0.8) |
| | Percentage distribution |
| United States | 30 | ( 0.3) | 43 | ( 0.4) | 27 | ( 0.3) |
| Alabama | 23 | ( 2.0) | 29 | ( 2.5) | 49 | ( 2.6) |
| Alaska | ‡ | ( ‡) | ‡ | ( ‡) | ‡ | ( ‡) |
| Arizona | 48 | ( 2.0) | 29 | ( 2.8) | 22 | ( 3.3) |
| Arkansas | 22 | ( 1.4) | 17 | ( 1.5) | 61 | ( 1.9) |
| California | 46 | ( 0.9) | 47 | ( 1.0) | 7 | ( 0.9) |
| Colorado | 35 | ( 2.1) | 46 | ( 2.1) | 19 | ( 2.2) |
| Connecticut | 23 | ( 2.0) | 64 | ( 2.2) | 13 | ( 1.5) |
| Delaware | 9 | ( 0.3) | 61 | ( 0.3) | 30 | ( 0.3) |
| District of Columbia | 100 | (***) | # | (***) | # | (***) |
| Florida | 25 | ( 1.9) | 58 | ( 2.4) | 16 | ( 1.4) |
| Georgia | 15 | ( 1.0) | 45 | ( 1.5) | 40 | ( 1.8) |
| Hawaii | 24 | ( 0.3) | 49 | ( 0.4) | 27 | ( 0.4) |
| Idaho | 30 | ( 1.3) | 25 | ( 1.1) | 45 | ( 2.2) |
| Illinois | 34 | ( 1.6) | 47 | ( 2.0) | 19 | ( 2.0) |
| Indiana | 26 | ( 2.0) | 35 | ( 2.1) | 38 | ( 2.2) |
| Iowa | 25 | ( 1.6) | 16 | ( 1.5) | 60 | ( 1.9) |
| Kansas | 25 | ( 1.2) | 29 | ( 2.3) | 46 | ( 2.4) |
| Kentucky | 17 | ( 1.0) | 29 | ( 2.2) | 55 | ( 2.1) |
| Louisiana | 30 | ( 2.7) | 32 | ( 2.1) | 39 | ( 2.8) |
| Maine | 10 | ( 0.5) | 18 | ( 1.1) | 72 | ( 1.2) |
| Maryland | 16 | ( 1.7) | 69 | ( 1.7) | 16 | ( 1.1) |
| Massachusetts | 28 | ( 1.0) | 61 | ( 1.1) | 11 | ( 0.3) |
| Michigan | 26 | ( 2.0) | 45 | ( 2.1) | 29 | ( 2.2) |
| Minnesota | 22 | ( 2.0) | 42 | ( 2.2) | 36 | ( 2.3) |
| Mississippi | 12 | ( 0.8) | 29 | ( 2.6) | 58 | ( 2.6) |
| Missouri | 20 | ( 0.9) | 41 | ( 1.7) | 39 | ( 1.7) |
| Montana | 23 | ( 0.8) | 15 | ( 0.8) | 62 | ( 1.2) |
| Nebraska | 32 | ( 1.8) | 19 | ( 1.8) | 50 | ( 1.9) |
| Nevada | 49 | ( 1.2) | 30 | ( 1.1) | 21 | ( 1.0) |
| New Hampshire | 17 | ( 0.4) | 37 | ( 1.1) | 46 | ( 1.3) |
| New Jersey | 8 | ( 2.8) | 85 | ( 3.0) | 7 | ( 1.0) |
| New Mexico | 37 | ( 1.4) | 30 | ( 1.4) | 33 | ( 1.3) |
| New York | 42 | ( 1.3) | 42 | ( 1.6) | 16 | ( 1.6) |
| North Carolina | 25 | ( 1.4) | 24 | ( 1.0) | 50 | ( 1.4) |
| North Dakota | 21 | ( 0.4) | 13 | ( 0.3) | 66 | ( 0.4) |
| Ohio | 21 | ( 1.4) | 48 | ( 2.3) | 31 | ( 2.4) |
| Oklahoma | 19 | ( 1.2) | 38 | ( 2.6) | 42 | ( 2.4) |
| Oregon | 32 | ( 2.0) | 40 | ( 1.9) | 28 | ( 2.2) |
| Pennsylvania | 19 | ( 1.0) | 54 | ( 1.2) | 27 | ( 0.8) |
| Rhode Island | 34 | ( 0.3) | 55 | ( 0.3) | 11 | ( 0.2) |
| South Carolina | 14 | ( 1.4) | 40 | ( 1.6) | 46 | ( 2.4) |
| South Dakota | 23 | ( 0.4) | 4 | ( 0.1) | 73 | ( 0.4) |
| Tennessee | 29 | ( 1.8) | 28 | ( 2.4) | 43 | ( 2.3) |
| Texas | 47 | ( 1.2) | 33 | ( 1.2) | 20 | ( 1.3) |
| Utah | 18 | ( 0.5) | 63 | ( 1.1) | 19 | ( 1.2) |
| Vermont | ‡ | ( ‡) | ‡ | ( ‡) | ‡ | ( ‡) |
| Virginia | 25 | ( 1.0) | 47 | ( 1.2) | 28 | ( 1.6) |
| Washington | 27 | ( 2.3) | 51 | ( 2.1) | 22 | ( 1.6) |
| West Virginia | 16 | ( 1.6) | 25 | ( 1.7) | 59 | ( 1.6) |
| Wisconsin | 29 | ( 1.8) | 34 | ( 2.0) | 37 | ( 2.1) |
| Wyoming | 24 | ( 0.3) | 4 | ( 0.1) | 73 | ( 0.3) |
| # Rounds to zero. |
| ‡ Reporting standards not met. |
| (***) Standard error estimates cannot be determined. |
| NOTE: The NAEP Mathematics scale ranges from 0 to 500. Observed differences are not necessarily statistically significant. Detail may not sum to totals because of rounding. Standard errors appear in parentheses. |
| SOURCE: U.S. Department of Education, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Mathematics Assessment, NAEP Data Explorer. |
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