Panther and Leopard Group Maths Week 9!

Welcome to week 9 of your maths home learning!

This week we’ll be revisiting addition problems.

ROCK STARS!! Don’t forget to complete 20 minutes of Times Tables Rockstars a day to keep up your great times tables work!

Monday 8th June 2020WALT: solve addition problems using estimates.

When we estimate the answer to a problem we have to first round the numbers to a sensible

amount. This could be to the nearest 10, 100 or 1000.

You will need to remember our rounding rhyme!

Today, you will need to decide what you are going to round your number to (nearest 10, 100 or 1000) in

order to achieve the most accurate estimate but still keep the calculation simple. An estimate should be quick

and easy to calculate. Perhaps have a try with the first problem before you decide how to solve the rest.

Monday 8th June 2020WALT: solve addition problems using estimates. Remember, estimate first, then check your answer using column addition. If your estimate is far

away from your answer then you have made a mistake and will need to go back and check

which of your calculations, rounding, is incorrect!

1. 1432 + 3675 =

2. 3619 + 6120 =

3. 4313 + 9278 =

4. 6428 + 2189 =

5. 5682 + 3434 =

Challenge: can you solve this problem by rounding to the nearest 10, 100 and 100?

1245 + 6720 =

Which estimate is the most accurate? Is the best one? Explain your answer.

Answers: I decided to round mine to the nearest hundred so my estimate would be more accurate than the nearest 1000 but easier to calculate quickly than the nearest ten. You may have chosen to round to the nearest 10 or 1000 and that’s okay too.

1. 1432 + 3675 = 1. 1400 + 3700 = 5100 2. 1432 + 3675 = 5107

2. 3619 + 6120 = 1. 3600 + 6100 = 9700 2. 3619 + 6120 = 9739

3. 4313 + 9278 = 1. 4300 + 9300 =13600 2. 4313 + 9278 = 13591

4. 6428 + 2189 = 1. 6400 + 2200 = 8600 2. 6428 + 2189 = 8617

5. 5682 + 3434 = 1. 5700 + 3400 = 9100 2. 5682 + 3434 = 9116

1245 + 6720 = Nearest 1000 = 1000 + 7000 = 8000

Nearest 100 = 1200 + 6700 = 7900

Nearest 10 = 1250 + 6720 = 7970

Actual answer = 1245 + 6720 = 7965

Look back to my explanation of choice above. You would hopefully have noticed something similar and explained it clearly.

Monday 8th June 2020WALT: Solve word problems using addition.

Tuesday 9thJune 2020WALT: solve problems involving estimates.

Using your knowledge of estimates, solve the problems below. Read each question carefully

and remember to explain your answer where necessary.

Answers

Tuesday 9thJune 2020WALT: solve problems involving estimates.

Wednesday 10th June 2020WALT: solve two –step word problems.

On the following page are some two-step word problems for you to solve. Read them carefully

and identify the two calculations you will need to make. Then, solve it using your knowledge

of addition and subtraction.

I have completed a question below for you as an example.

£12.50 + £19.20 = £31.0

£48.50 - £31.60 =

1. Read the question carefully.

2. Identify the two calculations.

3. Calculate part one.

4. Calculate part two.

5. Record your answer.

Answers

1. 78 minutes

2. 369 miles

3. £6.08

Wednesday 10th June 2020WALT: solve two –step word problems.

Thursday 11th June 2020WALT: solve problems using our addition skills.

1.

2.

3.

Successfully completing problems like these shows a

you have a great understanding of place value and

addition operations.

Use your knowledge of addition to solve the problems below;

Answers

Thursday 11th June 2020WALT: solve problems using our addition skills.

1.

2.

3.

293

753

1293 2953 754

There are many options you could have had here, as

long as they add to 5000 then it is correct. However,

ideally the problem wanted you to carry on the

pattern of ending above like I have in my example.

73

72

02

7 5 6

30

70

40 40

Friday 12th June 2020WALT: use addition to explore number patterns.

Explore the problem below. Remember, to prove an idea, we have to evidence it at least 5 times.

Questions to consider:

1. What do you notice about your answers?

2. Can you find a rule that applies for all groups of

three consecutive numbers?

3. Does it make a difference if you start with an

odd or even number?

Extension: What would happen if we added four

consecutive numbers? Does the same rule apply?

Answers

Friday 12th June 2020WALT: compare number bonds.