Add/Sub decimal numbers E7 -Place value partitioning Wk2 T3.

WALT -  Use reversibility to solve addition and subtraction problems                           that include tenths and hundredths.

TASK: This week we have be learning how to add and subtract decimals. Our learning intention is that we are learning to split numbers into hundredths, tenths, ones, and tens to solve addition and subtraction below. 

Tenths/Hundredth blocks Wk7 T2.

WALT - Represent decimal numbers and solve equations using objects.

Our task was to us objects that symbolises the Ones, Tenths & Hundredths so it would be easier for us to understand, after using objects we tried doing it without the objects and I found it easy to understand. Then we started our activity, first thing we had to do was take a photos of the objects as a decimal. Then we had to copy and paste pictures of the the objects underneath the decimals writ-in down.

Decimal fractions Wk5 T2.

 Decimal fractions

Place value practice with tenths and hundredths

We are learning to use tenths and hundredths

Example: Fill in your worksheet as shown

Example: 345.6

100	10	1
3	4	5	6

Expanded number: 300 + 40 + 5 + 6/10

Exercise 1

What to do

1. Fill in your worksheet
2. Then expand your number

1) 34.5 (2) 8.87 (3) 2.1

4) 18.9 (5) 23.8 (6) 1.6

7) 0.5 (8) 0.23 (9) 3.98

10) 15.2 (11) 15 (12) 674.1

13) 1023 (14) 1045.6 (15) 300.1

16) 89.44 (17) 0.96 (18) 0.35

19) 104.3 (20) 100.5

Question	1000	100	10	1		1/100	Expanded number
1.			3	4	5		30+4+5/10
2				8	8	7	8+8/10+70/100
3				2	1		2+1/10
4			1	8	9		10+8+ 9/10
5			2	3	8		20+3+8/10
6				1	6		1+6/10
7				0	5		0+5/10
8				0	2	3	0+2/10+30/100
9			3	9	8		3+9/10+80/100
10			1	5	2		10+5+2/10
11			1	5			10+5
12		6	7	4	1		600+7+4+1/10
13	1	0	2	3			1000+20+30
14	1	0	4	5	6		1000+40+5+6/10
15		3	0	0	1		300+1/10
16			8	9	4	4	80+9+4/10+40/100
17				0	9	6	0+9/10+60/100
18				0	3	5	0+3/10+50/100
19		1	0	4	3		100+4+3/10
20		1	0	0	5		100+5/10

Exercise 2

What to do:

Write the expanded numbers as a decimal fraction

Question	100	10	1	1/10	1/100	Decimal fraction
A	4	0	3	0	0	403
B	0	8	9	0	3	89.03
C	2	3	4	6	0	234.6
D	3	0	6	0	5	306.05
E	0	0	0	0	0
F	0	7	0	1	6	70.16
G	6	0	0	0	0	600
H	0	0	3	8	6	3.86
I	8	2	4	5	0	824.5
J	3	0	1	0	6	301.06
K	2	3	5	9	0	235.9

Exercise 3

Underline the hundredths in each question

1)  34.64 (2) 78 (3) 345.9

4)  1234.624 (5) 67.9 (6) 0.0122

7)  59.345 (8) 12345.82 (9) 456.6722

10)  12.89 (11) 0.897 (12) 21.2129

Exercise 4

Highlight the digit in the tens place

1) 24 741 (2) 18 932 (3) 78.043

4) 567.15 (5) 4536. 407

Exercise 5

Add one tenth () to each of these numbers

1)  0.8 (2) 0.4 (3) 12.1

4) 24.5   (5) 12.7 (6) 168.5

7)  2145.3 (8) 1.0 (9) 24.0

Exercise 6

Add one tenth (1/100) to each of these numbers

1)  0.72 (2) 0.31 (3) 12.04

4)  24.433 (5) 12.632 (6) 18.449   

7)  2145.21   (8) 0.91 (9) 23.96

Exercise 7

Take one tenth () from each of these numbers

1) 39.5 (2) 32.0 (3) 123.6

4) 0.79 (5) 45.5 (6) 56.0

7) 286. 1 (8) 39.0 (9) 8.1

(10) 478.20

------------------------------------------------------------------------------------------------------------

WALT-Identify and uses tenths and hundredths.

TASK: My task was to try understanding the identify and uses tenths and hundredths. I didn't know what to do or how to work it out but after a few try's I learn how to expand and to decimal fractions.