﻿ NLVM 3 - 5 - Number & Operations Manipulatives     Number & Operations (Grades 3 - 5)

Virtual manipulatives for Number & Operations, grades 3 - 5. Abacus – An electronic abacus that can be used to do arithmetic. Bar Chart – Create a bar chart showing quantities or percentages by labeling columns and clicking on values. Base Blocks – Illustrate addition and subtraction in a variety of bases. Base Blocks Addition – Use base ten blocks to model grouping in addition. Base Blocks Decimals – Add and subtract decimal values using base blocks. Base Blocks Subtraction – Use base ten blocks to model separation of groups in subtraction. Chip Abacus – Learn about carrying and digits using chips. Circle 0 – A puzzle involving adding positive and negative integers to sum to zero. Circle 21 – A puzzle involving adding positive and negative integers to sum to twenty one. Circle 3 – A puzzle involving adding positive real numbers to sum to three. Circle 99 – A puzzle involving adding positive and negative integers to sum to ninety nine. Color Chips - Addition – Use color chips to illustrate addition of integers. Color Chips - Subtraction – Use color chips to illustrate subtraction of integers. Color Patterns – Arrange colors to complete a pattern. Diffy – Solve an interesting puzzle involving the differences of given numbers. Factor Tree – Factor numbers using a tree diagram. Fraction Bars – Learn about fractions using fraction bars. Fraction Pieces – Work with parts and wholes to learn about fractions. Fractions - Adding – Illustrates what it means to find a common denominator and combine. Fractions - Comparing – Judge the size of fractions and plot them on a number line. Fractions - Equivalent – Illustrates relationships between equivalent fractions. Fractions - Naming – Write the fraction corresponding to the highlighted portion of a shape. Fractions - Parts of a Whole – Relates parts of a whole unit to written description and fraction. Fractions - Rectangle Multiplication – Visualize and practice multiplying fractions using an area representation. Fractions - Visualizing – Illustrate a fraction by dividing a shape and highlighting the appropriate parts. Grapher – A tool for graphing and exploring functions. Hundreds Chart – Practice counting and visualize number patterns using a hundreds chart. Mastermind – Use inference and logic to play a game and guess a hidden pattern of pegs. Money – Learn about money by counting and making change. Number Line Arithmetic – Illustrates arithmetic operations using a number line. Number Line Bars – Use bars to show addition, subtraction, multiplication, and division on a number line. Number Line Bars - Fractions – Divide fractions using number line bars. Number Line Bounce – Number line addition and subtraction game. Number Patterns – Discover the pattern and complete a sequence of numbers. Number Puzzles – Solve puzzles involving arranging numbers on a diagram so that they add up to a given value. Peg Puzzle – Win this game by moving the pegs on the left past the pegs on the right. Percent Grids – Represent, name, and explore percentages using hundreds grids. Percentages – Discover relationships between fractions, percents, and decimals. Pie Chart – Explore percentages and fractions using pie charts. Place Value Number Line – Explore place value by placing dots on number lines. Rectangle Division – Visualize and practice dividing numbers by using an area representation. Rectangle Multiplication – Visualize the multiplication of two numbers as an area. Rectangle Multiplication of Integers – Visualize and practice multiplying integers using an area representation. Sieve of Eratosthenes – Relate number patterns with visual patterns. Tangrams – Use all seven Chinese puzzle pieces to make shapes and solve problems. Venn Diagrams – Investigate common features of sets.