# compilation • December 13, 2020December 13, 2020

Addition (usually signified by the plus symbol +) is one of the four basic operations of arithmetic, the other three being subtraction, multiplication and division. The addition of two whole numbers results in the total amount or sum of… Read More »Grade 1 Math | Addition (Compilation) ## Grade 1 Math | Place Value (Compilation)

• December 11, 2020December 11, 2020

Positional notation (or place-value notation, or positional numeral system) denotes usually the extension to any base of the Hindu–Arabic numeral system (or decimal system). More generally, a positional system is a numeral system… Read More »Grade 1 Math | Place Value (Compilation) ## Grade 1 Math | Numbers and Counting (Compilation)

• December 7, 2020December 7, 2020

A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers1, 2, 3, 4, and so forth. Numbers can be represented in language with number words. More universally, individual numbers… Read More »Grade 1 Math | Numbers and Counting (Compilation) ## Grade 4 Math | Conversion of Unit (Compilation)

• November 25, 2020November 25, 2020

Conversion of units is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors. Length is a measure of distance. In the International System of Quantities, length… Read More »Grade 4 Math | Conversion of Unit (Compilation) ## Grade 4 Math | Decimals Compilation

• November 17, 2020November 17, 2020

The decimalnumeral system (also called base-tenpositional numeral system, and occasionally called denary or decanary) is the standard system for denoting integer and non-integer numbers. It is the extension to non-integer numbers of the Hindu–Arabic numeral… Read More »Grade 4 Math | Decimals Compilation ## Grade 4 Math | Fractions Compilation

• November 10, 2020November 10, 2020

A fraction (from Latinfractus, “broken”) represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how… Read More »Grade 4 Math | Fractions Compilation