New PDF release: Painless Junior: Math (Barron's Painless Junior Series)

Education Reference

By Margery Masters

Younger scholars learn how to understand the numerous makes use of of numbers as they interact in quantity video games and fun-to-solve puzzles. beginning with counting, they increase to mathematics, fractions, decimals, and different methods of measuring. academics in grades three and four will delight in the hot Painless Junior sequence of school room helpers. Designed to resemble titles in Barron's Painless Series-- that are utilized in center institution and highschool classrooms--the Painless Junior books characteristic better web page sizes, a laugh illustrations, video games, puzzles, and an method of their topics that displays 3rd- and fourth-grade curricula. Their function is to inject a component of delight into topics that many more youthful scholars locate both uninteresting or mystifying. young ones' figuring out will enhance as they've got enjoyable studying.

Show description

Read Online or Download Painless Junior: Math (Barron's Painless Junior Series) PDF

Best education & reference books

E. Richard Churchill's How to Make Optical Illusion Tricks & Toys PDF

"Page after web page of tips and toys that idiot the attention, whole with effortless directions, illustrations, and reasons. "--Parenting. "A e-book that's absolute to offer readers with many hours of enjoyable. "--SLJ. "An strange wet day source. "--Booklist. 128 pages, five 3/8 x eight 1/4.

Read e-book online Battle at the Alamo PDF

Find out about the occasions that led as much as the tragic conflict on the Alamo, together with the disputes among Mexico and the us. learn about the superb discoveries, fierce conflicts, and dynamic cultures that contributed to shaping this nation. The structure of the textual content and critical textual content positive factors supply scholars the chance to simply make connections and construct that means of the historic occasions that came about in this time.

Additional resources for Painless Junior: Math (Barron's Painless Junior Series)

Sample text

The chances are that you learned addition first. Did you ever think about what happens to numbers when you add them? Pethagerus likes cookies so let’s try it. “Yum! Yum! ” If Pethagerus puts all the cookies on one plate he is adding them together. The math sentence or equation looks like this: 3 + 4 = 7 Now Pethagerus has seven cookies on the plate. Seven is a larger number than three or four, so adding numbers results in a larger number. 33 7-3450-PainlessJrMath–Ch3 9/7/06 2:16 PM Page 34 CHAPTER 3: DOES IT ADD UP?

Sum: The answer to an addition problem. Commutative property: This property states that the order of the addends does not change the sum. Associative property: Sometimes called the grouping property, this property states that the grouping of the addends does not change the sum. Identity property: This property states that when zero is added to a number the sum is that number. 7-3450-PainlessJrMath–Ch3 9/14/06 9:36 AM Page 33 WHAT HAPPENS TO NUMBERS WHEN YOU ADD THEM? Do you remember the first operation you learned when you were younger?

What is special about 35? It is halfway between 30 and 40, so how do we round 35 to the nearest ten? This was a problem for mathematicians until it was decided that all numbers in the middle would round up. That means 35 rounded to the nearest ten is 40. Larger numbers can also be rounded to the nearest ten. Most of the time, the digits in the higher places just come along for the ride. Look at the number line below. 860 870 Find the place for 864, and write that number on the number line. Is 864 nearer to 860 or 870?

Download PDF sample

Rated 4.91 of 5 – based on 35 votes