CMAS Grades 6-8 The Number System. Practice it free.

Extends number sense to rational numbers, including operations with fractions, decimals, integers, and negative numbers. This Grades 6-8 reporting domain maps to 6 practice skills and 8 representative questions from the playable bank.

Grades 6-8The Number System6 mapped skills
What the test measures

The Number System skills

  1. Apply and extend previous understandings of multiplication and division to divide fractions by fractions

  2. Compute fluently with multi-digit numbers and find common factors and multiples

  3. Apply and extend previous understandings of numbers to the system of rational numbers

  4. Know that there are numbers that are not rational and approximate them by rational numbers

Standards basis

Colorado Academic Standards (mathematics) — Colorado

How the CMAS reports it

CMAS is Colorado’s statewide summative assessment system aligned to the Colorado Academic Standards rather than a national framework like SBAC or NAEP. The official CMAS page and Colorado standards materials indicate the math assessment is built from Colorado Academic Standards, but the retrieved official CMAS page did not expose a separate math blueprint document.

Blueprint & weighting

No official CMAS math domain weighting/percent-of-items blueprint was available in the retrieved primary CMAS materials.

Try it now

8 free questions · 0/0 correct

Practice playeasy

Compute 0|0|.

00 is its own distance from 00, so 0=0|0| = 0.

Practice playeasy

What is 5.70×55.70 \times 5?

5.70×5=28.55.70 \times 5 = 28.5.

Practice playeasy

What is 1+(7)1 + (-7)?

Result: 6-6.

Practice playeasy

27\sqrt{27} lies between two consecutive integers. Enter the larger one.

52=25<27<36=625^2 = 25 < 27 < 36 = 6^2, so 27\sqrt{27} is between 55 and 66; the larger is 66.

Practice playeasy

What is 35×16\dfrac{3}{5} \times \dfrac{1}{6}?

Multiply across: 3×15×6=330=110\dfrac{3 \times 1}{5 \times 6} = \dfrac{3}{30} = \dfrac{1}{10}.

Practice playeasy

What is the distance on the real number line from 00 to 238-\dfrac{23}{8}?

Distance from zero is absolute value: 238=238\left|-\dfrac{23}{8}\right| = \dfrac{23}{8}.

Practice playeasy

What is 1110|11 - 10|?

First compute the difference: 1110=111 - 10 = 1. Then take the absolute value: 1=1|1| = 1.

Practice playeasy

What is 7.041.687.04 - 1.68?

7.041.68=5.367.04 - 1.68 = 5.36.

Keep practicing

Turn the number system into game time.

The CMAS placement starts with this test's real coverage map and finds the right difficulty.