All Operations
Bamzooki Multiplication & Division
Drag & Drop Math - drag & drop numbers to complete algorithms
Speed Grid Challenge - race to do a chosen number of multiplication problems in two minutes
XtraMath - free web-based math fact practice
Division
Games
Division Chunker - interactive tool for "chunking out" division
Division with Arrays - drag the sliders to model division using an array
Grouping Division - practice grouping division story problems
Mental Division - how to partition numbers to divide using mental math
Quotient Cafe - practicing division with remainders
Remainders Count - form an equation that will result in the largest remainder
Sharing Division - practice sharing division story problems
Multiplication
Games
Amoeba Multiplication - practice multiplication by splitting numbers
Multiplication Grid - solve multiplication problems using partial products
Multiplication with Arrays - models multiplication using an array
Times Square - race to get 4 products in a row!*
Instructional Videos
Multiplying Using the Area Model & Standard Algorithm (Khan Academy)
Order of Operations
Make 24 - use different operation signs to make 24
Order of Operations Four - Connect Four style game. Solve expressions using the Order of Operations to get four in a row
Primary Krypto - use numbers and operations to arrive at a target number
Powers of Ten
Patterning the Powers of Ten - a table that illustrates the powers of ten
Powers of Ten - start small and zoom out by powers of ten (You Tube video)
Song: "Powers" (You Tube video)
The Universe Within - start at the Milky Way and zoom in by powers of ten (presentation)