Jovise

Jovise

Grade
Grade K Grade 1 Grade 2 Grade 3 Grade 4 Grade 5 Grade 6 Grade 7 Grade 8 Elementary school Middle school High school Random mix
Skill
Multi digit addition Multi digit subtraction Partial products multiplication Lattice multiplication Partial quotients division Long division Fraction addition Fraction division Solving linear equations with two variables Finding extrema
Test
MAP test practice 180 MAP test practice 190 MAP test practice 200 MAP test practice 210 MAP test practice 220 MAP test practice 230 MAP test practice 240 MAP test practice 250
Arithmetic
Numbers to 10 Counting Addition and subtraction facts Multiplication and division facts Addition and subtraction Multiplication and division Units Negative numbers Fractions Decimals Squares and other powers
Algebra
Expressions Linear equations Quadratic equations Equations Inequalities Powers, roots, exponentiation and logarithms Trigonometry The number system Functions Linear algebra
Geometry
Elementary school geometry Middle school geometry High school geometry Trigonometry
Various
Word problems Proofs Combinatorics Probability and statistics Number theory Puzzle Chess
Calculus
Limits Continuity Differentiation Integration

Welcome to Jovise!

Interact with our math tutor chatbot. Practice math by grade, topic and skill. Try our daily quiz below.

Picture Jovise

I can show you how to do calculations like 1/3+1/6, 23*46 or 1331:11.

Picture You

id: 1220

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Glossary

Count : To count means to find out the number of objects by adding one for every object.

Hint

Count down by 4 starting at 8.

Solution

The correct answer is B. Counting down 4 starting from 8 gives: 8, 7, 6, 5, 4.

What is 8-4?

A 2
B 4
C 5
D 3

id: 7201

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Glossary

Foot : A foot or ft is a unit for measuring length. 3 feet are one yard. 1 foot is about 30 $cm.$

Inch : An inch or $in$ is a unit of measurement for length. 12 inches are one foot and 1 inch is about 2.54 $cm.$

Yard : A unit for measuring length equal to 3 feet. A yard is about $0.91$ meters.

Hint

A foot is 12 inches, a yard is 3 feet.

Solution

The correct answer is 36. A foot is 12 inches, a yard is 3 feet, so there are $3\cdot 12=36$ inches in a foot.

How many inches are in a yard?

id: 9837

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Glossary

Multiplication : Multiplication is the mathematical operation that is a shorthand for adding the same amount several times. For example $3\cdot 4=4+4+4=12.$

Parenthesis : Parenthesis or brackets are used to clarify the order of operations in an expression. Within an expression terms in parenthesis are supposed to be calculated first. For example $2\cdot(3+4)=2\cdot 7=14$ but $2\cdot 3+4=6+4=10.$

Squared : $x$ squared refers to the number $x^2=x\cdot x.$ For example 3 squared equals 9.

Hint

Multiply out the brackets in $(x-y)^2=(x-y)\cdot (x-y).$

Solution

The correct answer is B. $(x-y)^2=(x-y)\cdot (x-y)$ $=x\cdot x -x\cdot y-y \cdot x -y\cdot (-y)$ $=x^2-2xy+y^2$.

$(x-y)^2=?$

A $x^2+2xy+y^2$
B $x^2-2xy+y^2$
C $x^2+y^2$
D $x^2-y^2$

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