Math.  Multiply as you would with integers…you do not have to line the decimals up!  To place the decimal point in the product (your answer), count.

Slides:

Advertisements

Similar presentations

Multiplying Decimals 1. Multiply 2. Move the decimal.

Advertisements

Multiplying Decimals Cornell Notes.

Multiplying Decimals. Multiplying Decimals Notes Multiply as usual, ignoring the decimal points. Count how many total digits are to the right of the decimal.

EXAMPLE 1 Multiplying Decimals by Whole Numbers Find the product

Dimensional Analysis. The objective is to convert one unit to another unit.

 Each element on the periodic table has an isotope.  What make an element have different isotopes?  There are 2 different isotopes of iron  Find the.

Liberal Arts Math. Objectives  By the end of this lesson, you  Can multiply decimal numbers without the use of a calculator.

Scientific Notation.

Add, Subtract, Multiply, and Divide Decimals

Multiplication is the process of adding equal sets together = 6 We added 2 three times.

Basic Laws Of Math x

Let’s estimate when we multiply decimal fractions! This is one way to check our products.

Rational Numbers Jeopardy

Multiply Decimals 1.Multiply as with whole numbers. 2.Count the total numbers in decimal place value for both factors 3.Place as many numbers of your FINAL.

Significant Figures 1.All non-zero digits are significant (2.45 has 3 SF) 2.Zeros between (sandwiched)non- zero digits are significant (303 has 3 SF)

Multiplication of Decimal Fractions STEPS : 1. Count the number of places BEHIND the decimals 2. Treat the problem like you are multiplying whole numbers.

Computing with Decimals. Adding and Subtracting Decimals.

Lesson 4-7 Example Example 1 Find 4.32 × Multiply the factors, ignoring the decimal points for now. 432 × 6 = 2592.

Scientific and standard notation, conversion

Significant Figures Part 2 Problem Solving Applications.

Chapter 3 Average Atomic Mass. Section 3 Counting Atoms Relative Atomic Masses The standard used by scientists to compare units of atomic mass is the.

Decimals. Addition & Subtraction Example Find: Solution: = = =18.32 – =

Properties are special qualities of something. Addition and multiplication have special qualities that help you solve problems mentally = MENTAL MATH!!

Dividing a Decimal by a Decimal. Dividing Whole Numbers 12 ÷ 2 = 120 ÷ 20 = 1200 ÷ 200 = ÷ 2000 = Multiply both 12 and 2 by 10 Multiply.

Operations with Decimals

Decimal Operations Jeopardy

WRITING ABOUT MATH. FIRST…ANSWER THE QUESTION Question: How can you get the sum of 9 + 4? Answer: You can get the sum of 9+4 by adding 4 to 9, which is.

Quarter 1 Test 3 Review X. Mental Math: Multiplying & Dividing with Whole Numbers with Whole Numbers XI. Mental Math: Multiplying & Dividing with Decimals.

When estimating, 1.) You should be able to do the computation in your head 2.) Your answer should be close to the exact answer 1-1 Estimating sums, differences.

Math Jeopardy! By:. CurrentReviewWord Problem

Lesson 11-7 Pages Precision and Significant Digits.

Decimals Day 2 Multiply and Divide Decimals. DO NOT line up decimals Multiply with first number, then continue with next number Place decimal point in.

AGENDA WARM-UP LESSON 21 HW CORRECTIONS LESSON 22/23 HW QUESTIONS? LESSONS 24 AND 25 EXIT CARD.

Multiplying Decimals NS3

Significant Figures. Significant Figure Rules 1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant. 1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9)

Decimal Review. Adding decimals Rules Line up the decimal points 2. Make whole numbers look like decimals.

Scientific Notation. What is Scientific Notation? Scientific notation is a way of writing extremely large or small measurements. The number is written.

Multiplying Decimals Section (3 – 2). Vocabulary Product – means the answer to multiplying two or more numbers.

Adding Decimal Numbers

♣Multiplying Decimals♣

1. Multiply 2. Move the decimal

Multiplying Decimals by Decimals

Adding, Subtracting, and Multiplying Decimals 3-1/3-2

Adding Numbers in Scientific Notation

Knowing your math operation terms

1. Write each rational number in lowest term (similar to p.48 #45-51)

COUNTING IN BINARY Binary weightings 0 x x x x 8

1.6 – Calculating with Significant Figures

Multiply Decimals.

Multiplying Decimals TeacherTwins©2015.

Multiplying & Dividing by Powers of Ten

Significant Figures All non-zero digits are significant (2.45 has 3 SF) Zeros between (sandwiched)non-zero digits are significant (303 has 3 SF)

Multiplying Decimals & Properties of Multiplication

Multiplying Decimals by Decimals

Reading Measures Measuring in grams

Multiplying Decimals 3-6 & 3-7.

Aim: How do we convert between units with different metric prefixes?

Fractions, Decimals & Percentages

Objective - To add and subtract decimals.

Section 3.1 Rounding and Estimating

COUNTING IN BINARY Binary weightings 0 x x x x 8

Objective - To multiply decimals.

Count on 2 (Over the bridge)

Objective: Students will be able to multiply decimal numbers.

Multiplying Decimals by Decimals

Average Atomic Mass.

How do you determine where to round off your answers?

Multiplying Decimals.

Adding Decimals Subtracting Decimals Multiplying Decimals Cumulative

Presentation transcript:

Math

 Multiply as you would with integers…you do not have to line the decimals up!  To place the decimal point in the product (your answer), count the number of decimal places in each of your factors.  The product should have the same number of decimal places as the sum of the decimal places in the factors.

₊ 0.7 x x decimal place = 2 decimal places

x 6 x 23 x x 1.2 x -2

x 2.44 x 7 x 3.3

On average, 0.36 kg of carbon dioxide is added to the atmosphere for each mile a single car is driven. How many kilograms of carbon dioxide are added for each mile that 132 cars in the U.S. are driven?