Reflections Week 8

I have learnt how to make a water cycle using google drawings.
I thought that this was a bit easy  but not a lot.
I learnt that precipitation is when it rains and that ground flow is when the water goes under ground and it seeps out into a lake.



This week Iv'e learnt that a tornado is the most dangerous place when the tornado is in a ditch and that earthquake are most dangerous in a city because bits of building can fall on you and swash you.

Exercise 5

What to do   

Use the information given to you to derive the answer to a similar problem.

1. If 4 × 200 = 800 what is 4 × 201 ?  804
2. If 7 × 300 = 2100 what is 7 × 301 ?  2107
3. If 8 × 400 = 3200 what is 8 × 402 ?  3216
4. If 9 × 500 = 4500 what is 9 × 501 ?  4509
5. If 5 × 600 = 3000 what is 5 × 602?  3010
6. If 3 × 700 = 2100 what is 3 × 704 ?  2112
7. If 2 × 800 = 1600 what is 2 × 803 ?  1606

8) If 6 × 900 = 5400 what is 6 × 903 ?  5418

Exercise 6

What to do   

Use the information given to you to derive the answer to a similar problem.

1. If 4 × 200 = 800 what is 4 × 199 ?  796
2. If 7 × 300 = 2100 what is 7 × 299 ?  2093
3. If 8 × 400 = 3200 what is 8 × 398 ?  3184
4. If 9 × 500 = 4500 what is 9 × 498 ?  4482
5. If 5 × 600 = 3000 what is 5 × 597 ?  2985
6. If 3 × 700 = 2100 what is 3 × 698 ?  2094
7. If 2 × 800 = 1600 what is 2 x 797 ?  1594
8. If 6 × 900 = 5400 what is 6 × 897 ?  5382

Exercise 7

What to do   

Use the information given to you to derive the answer to a similar problem.

1. If 2 × 25 = 50 what is 2 × 24 ?  43
2. If 4 × 25 = 100 what is 4 × 27 ?  108
3. If 3 × 15 = 45 what is 3 × 14 ?  42
4. If 4 × 15 = 60 what is 4 × 17 ?  68
5. If 6 × 15 = 90 what is 6 × 14 ?  84
6. If 2 × 25 = 50 what is 2 × 26 ?  52
7. If 4 × 25 = 100 what is 4 × 24 ?  96
8. If 3 × 15 = 45 what is 3 × 16 ?  48
9. If 4 × 15 = 60 what is 4 × 13 ?  52
10. If 6 × 15 = 90 what is 6 × 17 ?  102

Exercise 8

What to do   

Use the strategy add a little/subtract a little to solve these problems.  

Julie wanted to find 3 × 28.

She knows that 28 is near 30, so she used 3 × 30 = 90 and subtracted 3 × 2 = 6 to get the answer.  

Julie recorded this in her maths book

3 × 28 = 90 – 6 = 84

Using Julie’s method find the answer to the following problems.  Record your working like Julie did.

1) 4 × 19 =76 (2) 3 × 41=123                  (3) 5 × 59=295

4) 7 × 52 =364     (5) 4 × 73=292 (6) 3 × 37= 111

7) 6 × 102=612      (8) 5 × 301=1505 (9) 4 × 698=2792

10) 3 × 499=1497 (11) 7 × 602=4214 (12) 9 x 3999=35,991

I thought that this week it was a really challenging because you have to figure out 6 × 900 = 5400 what is 6 × 897 ? without cheating  

It was really challenging

Week 7 Reflection

I learnt how to make a untidy number to a tidy number.
I really liked doing this because is keeps you brain thinking.

Week 6 Reflection

Here is some maths that I did I hope that you can find a different way to Figure it out. I learnt how to go past 4x12had had to do 21 x 4 witch equaled 84 so i had to - 1 to make it 83 so we had 1 extra.  



I learnt that you should not litter in the New Zealand other wise you might not have that much fresh water left in New Zealand.

Week6 Reflections

orange	green	grey	blue
7	4	3	4