How well do you know your addition and subtraction facts and multiplication tables? In this article you'll learn what brain studies show about the value of memorizing and using such fact sets.

Download these worksheets to sharpen your operations skills. Sheets focus on addition, subtraction, multiplication, division, mixed operations, input/output tables, the order of operations, and operations in other base number systems.

Download these free worksheets to sharpen your skills in converting units. Sheets focus on converting between a wide variety of measurement units including mass, length, volume, temperature, time, and many more.

Download these free worksheets to sharpen your multiplication skills in a variety of formats.

Download these free worksheets to sharpen your skills working with powers of ten. Sheets focus on whole numbers and decimals in comma/point and point/comma formats and are in both standard form and exponent form.

Download these worksheets to sharpen your subtraction skills. Sheets focus on single and multi-digit subtraction, subtracting across zeros and calculating complements, and subtracting in other base number systems.

Here are several great lesson ideas for a weather unit. The lessons cover topics in math and science including making clouds, recreating the water cycle, and making a tornado. There is also a list of weather resources for more information.

Article at LD Online provides 10 tips to guide teachers and parents in selecting instructional math software. The focus is on instructional software such as concept development, drill and practice, tutorial and simulation software rather...

This multiplication table has multiplication facts through 9 X 9 and also lets students practice them.

Create your own subtraction math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty, and vertical or horizontal equation format. You input minimum and maximum values...

Create your own division math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty - basic or advanced. You input minimum and maximum values of the numbers to be used,...

Create your own multiplication math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty - basic or advanced. You input minimum and maximum values of the numbers to be...

Create your own addition/subtraction math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty, and vertical or horizontal equation format. You input minimum and...

A group of topics that include counting with pictures to 20, sums to 100, finding the missing number in a sequence, multiplication, expanded and standard form, and basic computation practice with addition, subtraction, multiplication, or...

Go from rags to riches as you advance through the levels in this "Who Wants to Be a Millionaire?," type multiplication game.

In this interactive website put twenty multiplication problems in order according to the increasing value of their products.

Create your own addition math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty, and vertical or horizontal equation format. You input minimum and maximum values of...

Students can practice multiplying by powers of ten in this quick-fire math drill. 120 exercises are presented, in which students must perform the multiplication. All exercises are some number multiplied by 10, 100, 1000, or 10,000.