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

Students apply and extend number-system concepts to rational numbers. This Grades 6-8 reporting domain maps to 5 practice skills and 8 representative questions from the playable bank.

Grades 6-85 mapped skills
What the test measures

The Number System skills

  1. apply and extend previous understandings of multiplication and division to fractions

  2. compute fluently with multi-digit numbers and decimals

  3. apply and extend prior understandings of numbers to the system of rational numbers

Standards basis

Common Core State Standards (CCSS-M), via the Massachusetts Curriculum Framework for Mathematics (2017) adopted/used for RICAS alignment — Rhode Island

How the RICAS reports it

RICAS mathematics in grades 3–8 is the Rhode Island-administered version of Massachusetts MCAS math, and RIDE states the Massachusetts framework is strongly aligned with Rhode Island’s Common Core-based mathematics standards. The released-item documents report results under the same framework domains used by the Massachusetts Curriculum Framework for Mathematics.

Blueprint & weighting

The official source reviewed here did not publish domain percentage weights in the pages/documents retrieved. The released-item documents do state that mathematics results are reported under five MCAS reporting categories identical to the framework domains.

Practice by skill

Topics mapped to this domain

Absolute value

Grade 660 questions

Decimal operations

Grade 6109 questions

Integer operations

Grade 7121 questions

Multiplying and dividing fractions

Grade 6112 questions

Rational number line locations (ACT)

Grade 610 questions
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

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 ∣11−10∣|11 - 10|?

First compute the difference: 11−10=111 - 10 = 1. Then take the absolute value: ∣1∣=1|1| = 1.

Practice playeasy

What is 7.04−1.687.04 - 1.68?

7.04−1.68=5.367.04 - 1.68 = 5.36.

Practice playeasy

What is (−16)÷(−4)(-16) \div (-4)?

Result: 44.

Keep practicing

Turn the number system into game time.

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

Blaster Gate game coverBlaster GatePlay →Blitz Tanks game coverBlitz TanksPlay →Blossom Leap game coverBlossom LeapPlay →Bullseye Blitz game coverBullseye BlitzPlay →
Related Common Core standards
6.NS.C.76.NS.B.37.NS.A.16.NS.A.1
The same skills on other tests
CMASDC CAPEGeorgia MilestonesIAR
Source and test overview
All RICAS prepOfficial test source
Reporting categories

More Grades 6-8 domains

Ratios and Proportional RelationshipsStudents use ratio reasoning to solve real-world and mathematical problems.8 QsPractice →Expressions and EquationsStudents use algebraic expressions and equations to represent and solve problems.8 QsPractice →GeometryStudents solve problems involving angle measure, similarity, area, volume, and geometric transformations.8 QsPractice →Statistics and ProbabilityStudents summarize, represent, and interpret data and understand probability.8 QsPractice →