Numeracy Stage: Third Grade (Year 8)

By the time they are finished the third grade, children should be able to:

Place Value / Basic Operations

  • add or subtract numbers within 1000 fluently
  • use place value to round whole numbers to the nearest 10 or 100
  • multiply 1-digit numbers using multiples of 10 from 10 – 90 


  • understand fractions as numbers on a number line
  • recognize and create simple equivalent fractions
  • compare two fractions with the same numerator or denominator
  • recognize that comparisons are valid only when referring to the same whole
  • separate shapes into parts with equal area and convey each part as a unit fraction

Algebraic Thinking

  • represent and solve number sentences or word problems involving multiplication and/or division
  • multiply a single digit by a multiple of 10
  • understand the properties of multiplication and its relationship to division
  • multiply and divide within 100 (using fact families up to 10)
  • solve number and word problems using the four basic operations
  • identify and explain arithmetic patterns


  • tell time to the nearest minute
  • measure time intervals
  • solve addition and subtraction time interval problems on a number line
  • estimate and measure volume and mass using grams, kilograms and litres
  • understand concept of area and how it relates to multiplication
  • recognize perimeter and how it relates to addition
  • solve perimeter and area using closed plane figures (visually) or through word problems

Data Analysis

  • draw scaled picture and bar graphs
  • represent data sets and solve word problems using picture and bar graphs
  • generate data by measuring lengths on a line plot (using whole numbers, halves and fourths)
  • connect data on a line plot with fractions on a number line

Geometry / Spatial Sense

  • understand that shapes in different categories may share attributes
  • associate rhombuses, rectangles and squares as quadrilaterals
  • distinguish between linear measurement and area