Table of Contents

The Hundreds Board is the MOST
VALUABLE manipulatives in elementary mathmatics and coloring in multiples of a number is the
most important multiplication strategy. This page will introduce
you to this concrete mathematics language!! Just the Boards:

traditional 100s board

0 to 99 board (0 on left)

negativepositve board (0 on right)

negativepositve board (0 on left)

DIGITAL MANIPULATIVE of the 100s Board.

The Hundreds Board THE BOOK
 Ready for Coloring 100s Boards:
 1 Blank Colorable 100s Board
 6 Blank Colorable 100s Boards
 Answers: 115, 16, 712
 How can we get the times tables right?
 Standard Notation to Expanded Notation to Standard Notation

stand.xls DIGITAL MANIPULATIVE on a spreadsheet with the expansion of the number 5432.
 Multiplication Drill  Test yourself on 2number multiplication using
your numbers or the pagegenerated numbers.
 Multiple Strips & Fraction Bars
This page concretely presents multiples of a number and equivalent fractions.
 Times Tables, Multiple Strips, Fraction Bars Graphic

strips.xls DIGITAL MANIPULATIVE on a spreadsheet with multiple strips.
 The Three Times Tables to the Tune of Frere Jacques
has both words and music suggested by Grace Burton.
 Then Nine Times Tables On Your Fingers Simply count the
digits on either side of the desired multiplier.

9times.xls DIGITAL MANIPULATIVE on a spreadsheet designed to show this finger multiplication
to large audiences.
 Napier's Bones used to multiply, divide, take a square root

napierb.xls DIGITAL MANIPULATIVE on a spreadsheet with Napier's bones.

The Decimal Bakery a math fairy tale on decimal computation

Ancient Egyptian Multiplication, Division, Unit Fractions Russian Peasant Multiplication, Multiplication by Doubling & Halving, Base Two Decomposition

Fraction Computation Stated in Symbolic Form

MY, MY, MULTIPLY
 multiplication: wholes, fractions, decimals VOCABULARY
