Time for decimals.

WALT: Use different strategies to solve addition and subtraction word problems AND decimal addition and subtraction.


This week we've been learning about addition and subtraction with decimals, I learnt a range of strategies to solve this. Look in the presentation above to see what I've been learning about.

Week 1&2: Decimals.

WALT:
- Add tenths and hundredths.
-  Use geometric language.


Throughout the two weeks of school, We learnt about decimals. How we could add tenths and hundredths, We also used fractions to compare with decimals. Our class learnt how to use word problems, For an example: Sixty two and five tenths.

Extension Work - Maths

See if you can solve these word problems. Show how you worked it out!! (use brackets to expand numbers)

1. It rained 1.35 inches on Saturday and 1.98 inches on Sunday. How much did it rain on Saturday and Sunday combined?

• 1.35 + 1.98 = 3.33
• (1 + 1 = 2)
• (0.3 + 0.9= 1.2)
• (.5 + .8 = 1.3)

2. There were 7.6 litres of water in Jacob's bathtub. Then 2.9 litres drained out. How much water is left in the bathtub?

• 7.6 - 2.9 = 4.7
• (7 - 2 = 5 )
• ( .6 - .9 = .3)

3. A carpenter bought a piece of wood that was 6.15 meters long. Then he sawed 2.14 meters off the end. How long is the piece of wood now?

• 6.15 - 2.14 = 4.01
• (6 - 2 = 4)
• ( .10 - .10 = .0)
• ( .5 - .4 = .1)

4. A chef bought 4.2 kilograms of almonds and 7.8 kilograms of pecans. How many kilograms of nuts did the chef buy in all?

• 4.2 + 7.8= 12.
• ( 4 + 7 = 11)
• (.2 + .8= 1)

5. It snowed 8.9 inches on Monday and 3.9 inches on Tuesday. How much did it snow on Monday and Tuesday combined?

• 8.9 + 3.9= 12.8
• ( 8 + 3= 11)
• (.9 + .9= 1.8)

6. It rained 0.97 cm on Monday. On Tuesday, it rained 0.4 cm less than on Monday. How much did it rain on Tuesday? READ CAREFULLY-THIS ONE WILL TRY AND TRICK YOU!

• 0.97 - 0.4=  0.57
• (0.9 - 0.4 = 0.5)
• ( It rained 0.57cm on Tuesday.)

7. Omar spent Saturday picking berries at a berry farm. In the morning, he picked 3.61 kg of berries. In the afternoon, he picked 2.4 kgs. How many pounds of berries did Omar pick in all?

• 3.61 + 2.4=6.01
• ( 3 + 2= 5.)
• (.6 + .4 = 1)
• (.1)

8. A bee colony produced 0.91 pounds of honey, but bears ate 0.9 pounds of it. How much honey remains?

• 0.91 - 0.9= 0.01
• (0.9 - 0.9 = 0.0)
• (0.1)

9. Oscar bought 5.87 pounds of melon and 3.18 pounds of cherries. How much fruit did he buy in all?

• 5.87 + 3.18= 9.05
• ( 5 + 3 = 8)
• (.80 + .10 = 1)
• (.07 + 0.8 = 0.05.)

10. Vince mixed 0.8 grams of salt into a pot of soup he was cooking. Before he served the soup, Vince added 0.25 grams of salt. How much salt did Vince put into the soup in all?

• 0.8 + 0.25= 1.05
• ( 0.8 + 0.2 = 1)
• (0.00 + 0.05 = 0.05)

Above my description I have my extension work, I was given two task to finish over the past two weeks of week 8 & 9. After finishing my last work last week I then moved on to my extension work, I had to solve and show my working out of how I got my answer.   

Recognize Tenths

WALT -  Identify and uses tenths to make numbers

This weeks task was to focus and identify the uses of tenths to make numbers, We compared fractions and decimals and how we could change one to the other. Our class was handed a presentation with 19 slides, We had two weeks to finish this task. We learnt the place value of decimals and fractions and whats the value of it.

Popsicle Decimals.

WALT -  Identify and uses tenths to make numbers


This weeks task was to identify and use tenths to make numbers. We used Popsicle sticks to round up the numbers we were given, We then added both decimals to get the result we wanted. To get the right answer we used Popsicle sticks.

Money and Decimals - Boom

WALT: use our place value knowledge to add and subtract decimals.

Today during maths we had to add and subtract money and decimals, This helps us re think about using strategies. Using these strategies will help us when doing groceries and getting the right amount of money back from the shop keeper.

Converting Fractions!

This picture on the left is an a equation, its called Converting Fractions. This site helps me convert percentages into fractions then decimals, on this site the Tester gives us an number on either the percentage, fraction or decimal then we´ll then have to convert it to the simplest as we can. If you want to try out the site here is the link here.

Problem Solving!!!

WALT: Multiply and Divide decimals.


Task of description:
Our task was to understand what decimals are. Also how to use them in division and dividing, I learnt this to get a good idea of what a decimal is and what they are for. One of these answer were really hard to answer, so what I did was to ask our teacher for some help. My friend and I put this into proper math answers so our reader can understand. Please leave a comment or feedback of what I did wrong.

Problem Solving!!!

WALT: Multiply and divide decimals



Description of task:
Today we learnt how to multiply decimals and divide decimals. I learnt how to tell if the problem is divide or multiply, I did this task with my friend Revival. I learnt this in a few steps and was so easy when I finally got what it meant. Please leave a comment to see what I did wrong or what I need to improve on.

Maths Teacher Lesson!!!

WALT: Work with decimals and Multiply decimals.

Click here to see how we solved the equation.

This week we had a lesson with our Teacher Mr S, we learnt two strategies today. We learnt how to work with decimals, where if the equation is multiply use division and you can still use the same thing around. Also we do that same thing to to addition and subtraction. The second equation we were learning was multiply decimals, where you can multiply step by step. Watch the video to see some more examples.

Maths Teacher lesson!!

WALT Subtract decimals

Description of task:
Today with our teacher we learnt how to subtract decimal in two ways. It was tricky at first, but easy when we got it. Our teacher gave us challenging question, we were think so hard. Mr S then he told us change the subtraction into an addition. We then add it to the closer unit and then add the rest, it was super easy when we got it.

Maths Teacher Lesson!!!

WALT: Add and Subtract Decimals.


Today our task was to learn how to add and subtract decimals. For an example: 2.75 + 3.611=, So to answer it we do 5 + 1= 6 and then 7 + 6= 13  and there is our answer 6.361. Please leave a comment or feedback of what I need to work on my particular learning needs.

Problem Solving!!!

WALT: Add and Subtract Decimals



Our task today was to learn about adding and subtracting decimals. Revival and I was given this task to work on and we have now finished within just in minutes, we learnt this to show our proper understanding of what decimals are. One of the equation was super hard but we got through it so far. To solve this answer we added or subtracted the hundredths, tenths and then the ones. Please leave a comment or feedback of what we need to work on.

Problem Solving!!

WALT: Add and Subtract decimals


This week our task was to do this presentation to show our understanding of what decimals are. For an example: 0.22 + 0.34= So first we do 22 + 34=56. So that was pretty easy you do the same with one columns. So the answer is 56, please leave a comment or feedback of what I need to improve on.

Problem solving!!

WALT: Adding and Subtracting Decimals.

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This week we are learning how to solve adding and subtracting decimals, Me and my friend Revival made this presentation to show our understanding of decimals. It was pretty easy when we learnt but then got harder when adding or subtracting big number decimals. Read the presentation and leave a comment or feedback of what you learnt or what I need to improve for my maths.

Teacher lesson!!

WALT: Add and Subtract decimals
Today we learnt how to solve adding and subtracting decimals. We learnt that the first number is the whole and second number is the fraction that is less than 1, Here is an example: So the equation is 2.6 + 4.1=  So how to solve this is 2 + 4= 6 then 6 + 1= 7 and the answer is 2.6 + 4.1= 6.7. Here is an another example: 5.6 - 2.3=, So first we do 5 - 2=3 and 6 - 3= 3 and the answer is 5.6 - 2.3= 3.3.

Problem solving!!

WALT: Add and Subtract Decimals.

Today me and my friend Revival did this presentation to show our understanding of decimals. I learnt how to subtract and add decimal it is really easy to some of us. Here is an example: 0.4 + 0.5= so first I did 4 + 5= 9 and then I do 0 + 0= 0 so we just need to add a decimal point and there is our answer 0.9.