Math JournalWeek 4

Monday September 13, 2010

Warm Up

1.What place value? 59.7262.Write twelve and nine hundredths.3. Compare: 3.4 O 3.294.Round to the nearest

hundredth: 5.639

Tuesday September 14, 2010

Warm Up

1.Round: 2,456.762. 19.5 O 213. Smallest to Largest: 1.4; 3; 2.5; 84.Write the largest number you can

Make with the digits 5 6 2 9

Wednesday September 15, 2010

Warm Up

1.What place value? 1,242,0002.Draw 1.4 pizzas3.Find the smallest possible number using the digits 7, 4, 0, 2, and 54. 6,009 O 897

Thursday September 16, 2010

Warm Up

1.What place value? 1,242,0002.Draw two and three tenths cakes3.Find the largest possible number using the digits 0, 4, 1, 9, and 64. 6.90 O 6.9

Monday September 13, 2010

Facts Practice

1. 99 + 25 = 2. 40 – 25 = 3. 10 x 8 = 4. 7 x 7 = 5. 9 x 7 =

Tuesday September 14, 2010

Facts Practice

1. 50 – 23 = 2. 8 x 4 = 3. 1,000,000 – 5,016= 4. 6, 9, __, 155. 9 x 9 =

Wednesday September 15, 2010

Facts Practice

1. 88 + 88 =2. 14 x 1 = 3. 423 – 296 = 4. 15, 12, 9, __5. 8 x 0 =

Thursday September 16, 2010

Facts Practice

1. 12.5 – 3.5 =2. 3 x 7 x 2 = 3. 99, 88, __, 66 = 4. 8 + 13 = 13 + __5. 93 + 13 + 34 =

Week 4

Focus Skill

This week’s focus skill is rounding,ordering, and solving problemsusing decimals to the thousandths place

Focus Skill

Let’s review rounding withDecimals:

1) 578.67

Focus Skill

Now review how to compare decimal numbers. Remember, we use < > = to compare.

2) 9 O 7.2

Focus Skill

Compare:

3) 7 O 7.004) 101 O 100.97

Focus Skill

Now we will order decimal numbers. Make sure you know if it is smallest to largest or largest to smallest.

Focus Skill

Let’s try one:

Order from least to greatest:

4.5; 8; 4.35; 11; 1.3

Focus Skill

Order from greatest to least:

21; 15.12; 89.1; 37.99; 21.5

Focus SkillNow we will add and subtract with decimals.

Write the rule in your notes:When adding or subtracting decimals, line up the decimals

Focus Skill

Let’s try one together:

8.3 + 6.7 =

8.3+ 6.7 .

Line up the decimals

Focus Skill

You try one:

7.3 + 11.4 =

.+ .___ .

Line up the decimals

Focus Skill

You try one:

61.1 + 25.93 =

.+ .___ .

Line up the decimals

Add missing zeroes

Focus Skill

You try one:

44 + 1.8 =

.+ .___ .

Line up the decimals

Add missing zeroes

Focus Skill

Subtraction works the same way:

8.3 - 5.1 =

8.3- 5.1 .

Line up the decimals

Focus Skill

You try one:

5.2 - 2.4 =

.+ .___ .

Line up the decimals

Focus Skill

You try one:

90 - 15.7 =

.+ .___ .

Line up the decimals

Add missing zeroes

Focus Skill

You try one:

10.8 – 8.21 =

.+ .___ .

Line up the decimals

Add missing zeroes

Focus Skill

Your turn: Line up the decimals

Add missing zeroes

1)4.5 + 2.4 =2)7.2 – 5.5 =3)12 + 6.6 =4)9.1 – 6 =5)77 + 8.12 =