Free Mental Maths Olympiad Class 7 Study Material

Preparation Material of CREST Mental Maths Olympiad (CMMO) for Class 7

The Class 7 study material for the CREST Mental Maths Olympiad (CMMO) is organised below under the nine official Class 7 syllabus units. Squares, cubes and their roots arrive this year, along with interest and volume. Each link opens a free CREST topic page.

What's new in Class 7

The official syllabus still has nine units, but four of them change. Number System takes the place of the separate number units of Class 6 (Knowing Our Numbers, Integers, and Fractions and Decimals), Geometry takes over from Understanding Elementary Shapes, and two units are entirely new: Square and Square Roots, and Cube and Cube Roots. The remaining five units carry on from Class 6.

Within the units, topics new in this guide include rational numbers, simple equations, square roots of decimals, cube roots, exponents, simple and compound interest, partnership, time and work, the area of a trapezium and a circle, and the surface area and volume of cubes, cuboids, cylinders and cones.

Class 7 paper at a glance

Unchanged from Class 6: 100 questions in 60 minutes for 120 marks. The Basique section has 80 one-mark questions and the Avance section 20 two-mark questions.

How to use this guide in Class 7

• Start with the two new root units. Squares and cubes you know by heart make the roots, and many Mensuration questions, much quicker.
• Comparing Quantities now has ten topics. Learn the interest, partnership and time and work ideas one at a time.
• Practise each group with the free Class 7 Mental Maths worksheets, then take the Class 7 CMMO sample paper in a single sitting.

Number System

1. Integers
2. Rational number and its properties

Algebra

1. Algebraic expressions
2. Simple equations

Square and Square Roots

1. Square of a number
2. Square roots
3. Square roots of decimals

Cube and Cube Roots

1. Cube of a number
2. Cube roots

Comparing Quantities

1. Ratio and proportion
2. Percentage
3. Profit and loss
4. Simple interest
5. Compound interest
6. Problems on ages
7. Time and work
8. Average
9. Partnership
10. Time and distance

Mensuration

1. Area of Shapes (Trapezium, General quadrilateral & Circle)
2. Surface area of cube
3. Surface area of cuboid
4. Surface area of cylinder
5. Surface area of cone, etc.
6. Volume of cube
7. Volume of cuboid
8. Volume of cylinder
9. Volume of cone, etc.

Playing with Numbers

1. Exponents
2. Mathematical reasoning
3. Tests of divisibility
4. H.C.F and L.C.M
5. Numbers pattern

Data Handling and Symmetry

1. Bar graph
2. Line graph
3. Symmetry

Geometry

1. Lines and angles