Make sure you know your 3-digit Student Class I.D. number for Math. Put away materials and study sheets and clear of your desk completely, except for your pencils and possibly an eraser. Aisles should be clear!

NAME First LAST SUBJECT M7-BMMFQz1-2 PERIOD 3 DATE 9/21 Scantron Format: 3-DIGIT STUDENT FORM CLASS I.D. NUMBER (Color Coded) 3 ? ? A , B , NAME First LAST SUBJECT M7-BMMFQz1-2 PERIOD 3 DATE 9/21

Basic Mental Math Facts Quiz 2 This is a testing situation. Please: a. Face all the way forward. b. Keep your eyes on your own work. c. Don’t talk or communicate with other students in any way. d. Leave Quizzes face down until told to begin.

NAME First LAST SUBJECT M7-MMFQz1-2 PERIOD 3 DATE 9/21 3-DIGIT STUDENT FORM CLASS I.D. NUMBER (Color Coded) 3 ? ? A , B , C , or D NAME First LAST SUBJECT M7-MMFQz1-2 PERIOD 3 DATE 9/21

Basic Mental Math Facts Quiz 1. 16 - 9 = 2. 42 / 6 = 3. 9 + 5 = A. 7 B. 12 C. 18 D. 24 4. 6 x 6 = 5. 9 x 0 = 6. 8 + 3 = T F i. (E) means “Not Given” 1. (A) (B) (C) (D) (E) ii. 8 minutes 2. (A) (B) (C) (D) (E) on Quiz 3. (A) (B) (C) (D) (E) iii. Be careful 4. (A) (B) (C) (D) (E) of numbering

When done, check your Heading -- especially I.D. Number and Form! 3-DIGIT STUDENT FORM CLASS I.D. NUMBER (Color Coded) 3 ? ? A , B , C , or D NAME First LAST SUBJECT M7-MMFQz 1-2 PERIOD 3 DATE 9/21

When Done: --Turn Scantron Sheet face down. --Make sure any stray marks are erased completely from the test paper.

We are Still in a Testing Situation! PUT YOUR PENCIL DOWN NOW ! Pass just the scantron sheets to the front. The first person in each row needs to separate them into 2 stacks by form and put them on the correct pile face-up, top-up and by form. Then, pass out the purple worksheet.

We are Still in a Testing Situation! Pass the colored quiz papers to the back. The last person in each row needs to separate these test by color and put them on the correct stack under the clock!

Nothing else should be out! HAVE OUT: 1. PENCIL and (or with) ERASER. 2. LAST NIGHT’S HOMEWORK. 3. Scratch and/or Notebook Paper. (You MAY choose to take notes.) Nothing else should be out!

9/20 Homework – Answers to Worksheet 1 1. 3.053 2. 7.049, 7.4, 7.421, 7.47 3. Fifty-two and twenty- three hundredths 4. 237.754 5. 59.134 6. 0.2926

Pass in Worksheet 1 Homework Decimals Pass in Worksheet 1 Homework Please be QUIET and ATTENTIVE during the lesson. NO Calculators! You may take notes!

Goal 1 – You should review or learn how to multiply by powers of ten. Have out paper and pencil! Multiplying and Dividing by Powers of 10 and Multiplying Decimals Goal 1 – You should review or learn how to multiply by powers of ten.

Multiplying by Powers of Ten Example 1 - 0.21415 x 1,000 = 0.21415 x 1,000 = 0.21415000 . Moving the decimal point 3 places to the right. = 0214.15000 3 zeroes and a 3 place move to the right.

Multiplying by Powers of Ten When multiplying by powers of 10, move the decimal point to the right. Example 1 - 0.21415 x 1,000 = 0.21415 x 103 = 0.21415 Moving the decimal point 3 places to the right. = 0214.15

Multiplying by Powers of Ten When multiplying by powers of 10, move the decimal point to the right. Example 2 - 7.2 x 106 = 7.2000000000 x 106 = 7.20000000 Moving the decimal point 6 places to the right. = 7,200,000.00

Multiplying and Dividing by Powers of 10 Goal 2 – You should review or learn how to divide by powers of ten.

Dividing by Powers of Ten When dividing by powers of 10, move the decimal point to the left. Example 3 - 5,436  103 = 5,436.0  103 = 5,436.0 Moving the decimal point 3 places to the left. = 5.436

Dividing by Powers of Ten When dividing by powers of 10, move the decimal point to the left. Example 3 - 0.425  100 = 000.425  100 = 000.425 Moving the decimal point 2 places to the left. = 0.00425

Multiplying and Dividing by Power of 10 A) 1.78 x 102 = 178.0 B) 0.5246 x 103 = 0524.6 C) 2.723 x 105 = 272,300.0

Multiplying and Dividing by Power of 10 7.8061 E) 59.8  104 = 0.00598 F) 14.7  103 = 0.0147

Multiplying and Dividing by Power of 10 1.2069 H) 0.428 x 10,000 = 4280.0

Goal 3 – You should review or learn how to multiply decimals. Multiplying Decimals Goal 3 – You should review or learn how to multiply decimals.

Multiplying Decimals Example 1 - 25.6 x 9.7 = 25.6 x 9.7 1) Rewrite problem in vertical format. Multiply digits. (Just ignore the decimal points for now.) 1792 23040 + 24832

Multiplying Decimals Example 1 - 25.6 x 9.7 = 25.6 x 9.7 2) Count the total number of digits to the right of the decimal points in the factors. 1792 23040 + That is 2 digits total to the right of the decimal points in the factors. 24832

Multiplying Decimals Example 1 - 25.6 x 9.7 = 25.6 x 9.7 3) That 2 digits total, to the right of the decimal points in the factors, is the number of places to the right of the decimal point you needed in the answer (product). Place the decimal point in the product (answer). 1792 23040 + 248 32 .

That is the answer to the problem! Multiplying Decimals Example 1 - 25.6 x 9.7 = 25.6 x 9.7 That is the answer to the problem! 1792 23040 + 248 32 .

Multiplying Decimals Example 2 - 0.056 x 0.28 = 0.056 x 0.28 1) Rewrite problem in vertical format. Multiply digits. (Just ignore the decimal points for now.) 448 1120 + 1568

Multiplying Decimals Example 2 - 0.056 x 0.28 = 0.056 x 0.28 2) Count the total number of digits to the right of the decimal points in the factors. 448 1120 + That is 5 digits total to the right of the decimal points in the factors. 1568

Multiplying Decimals Example 2 - 0.056 x 0.28 = 0.056 x 0.28 3) That 5 digits total, to the right of the decimal points in the factors, is the number of places to the right of the decimal point you needed in the answer (product). Annex zeros as needed and place the decimal point in the product (answer). 448 1120 + 0 0 . 1568

That is the answer to the problem! Multiplying Decimals Example 2 - 0.056 x 0.28 = 0.056 x 0.28 That is the answer to the problem! 448 1120 + 0 0 . 1568

Multiplying Decimals 29.44 36.472 0.057540 0.00087 A) 12.8 x 2.3 = B) 3.76 x 9.7 = C) 0.685 x 0.084 = D) 0.029 x 0.03 =

9/21 Class/Homework Worksheet 2 – Powers of 10 and Multiplying Decimals: 1- 4 NO Calculators! Show Steps! For help and/or more practice see Pg. 676 of your textbook.

Only 1 make-up Quiz per session. Make-Up Tests Math 7 Make-Up Quizzes are available Today, TUESDAY (9/16), at 7:45 a.m., 12:45 p.m. and/or 3:05 p.m. in Room 29. If it is a retest bring the original Scantron Form and/or Quiz with you. Only 1 make-up Quiz per session.