PPT-Using Boundary Numbers for Rounding

Math Unit One Lesson Seven Objective What will I learn today Round whole numbers Round numbers to 100000000 Why Round Rounding helps us get a close number when we want to tell about how many. with Mrs. Cross. M6 A.3.1.1 and A.3.1.3. Practice place value while you wait:. http://www.toonuniversity.com/flash.asp?err=496&engine=9. . What we know…. http://www.youtube.com/embed/3uEafe1r4GI?rel=0 . . Whole. . Numbers. What is rounding? Rounding means changing a given number to the nearest ten, hundred, thousand, and so on.. When rounding a number, you first need to ask: . what are you rounding it to?. In which place is the 4 in. each of the following:. 140,399. 48,210. 450. 129,394. Write 2 equivalent. fractions for each of the. following:. Rounding Decimal Numbers. Estimating and Approximating Sums and Differences. to the nearest 10. Next. Rounding numbers means to. get close to the exact number.. It’s used when we estimate.. Next. Rounding to the nearest 10. 20. . 21 22 23 24 . 25 26 27 28 29 . We do not always need to know the exact value of a number.. For example,. There are 1432 . students at East-park School. .. There . is about fourteen hundred students . at East-park School. .. Example. Remember:. If a number is 4 or lower, round down. If a number is 5 or higher round up. Examples. Round 29 to the nearest ten. Underline the 2 because it is in the tens place. Put a box around the 9, the 9 is the number that you look at to figure out the rule. MAFS.3.NBT.1.1. Lesson Opening. Write the correct number under each tick mark on the number lines below.. 83. 66. Lesson Opening. Write the correct number under each tick mark on the number lines below.. the point?. Get it. ?. © . Mike’s Math Mall. Decimals. PowerPoint. Rounding. We round numbers to make them easier to use and understand while keeping them close to their actual value.. Hey!. That sounds. Floating Point. Slides adapted from . Randy Bryant & Dave . O’Hallaron. Today: Floating Point. Background: Fractional binary numbers. IEEE floating point standard: Definition. Floating point in C. Created by: Libby Maccani. Educational Concern. BIG IDEA: . Estimation: Numbers can be approximated by numbers that are close. Numerical calculations can be approximated by replacing numbers with other numbers that are close and easy to compute with mentally.. LG: Demonstrate the ability to round numbers to the nearest ten. th. , hundred. th. , and thousand. th. Kid friendly: Show that you can round numbers to tenths, hundredths, and thousandths. Definitions. I. MATH/CMPSC 455. Floating Point Representation . of Real Numbers. Floating Point Representation of Real Numbers. This is about how computers represent and operate real numbers. . Helps . us to understand. Creator: . Jamin. Jones. Class CEP: 811. Date: October 29, 2012. Objectives. You will be able to…. Understand place value up to the tenths and hundredths. Round numbers to the nearest tenth and hundredth. This resource provides animated demonstrations of the mathematical method.. Check animations and delete slides not needed for your class.. There are 400 people in my village.. Last year I earnt £23,000..