2944_029
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7/26/2019 2944_029 http://slidepdf.com/reader/full/2944029 1/4 © Teacher Created Resources, Inc 29 #2944 How to Add & Subtract: Grade 3 • • • • • • • • • • • • • • • Use Expanded Form 7 How to Learning Notes Children learn to write numbers in expanded form using words only, numbers only, and numbers and words. Materials • 3 dice for each child • poster of the following math vocabulary chart Expanded Form Standard Form Words Only Numbers & Words Numbers Only Standard Teaching the Lesson Before beginning the work sheets, ask the children for another way to write the number 27. Show the children that 27 is the same as 2 tens 7 ones or 20 + 7 (or 27) Have the children practice writing different 2-, 3-, 4-, and 5-digit numbers using the expanded form. Go over the work sheets with the children. Remind the children to refer to the chart for help if needed. Learning Tip Make a photocopy of the chart for each student to keep as a reference tool. 200,000 50,000 3,000 400 10 2 (or) 200,000 + 50,000+ 3,000 + 400 + 10+ 2 253,412 2 hundred 2 thousands 5 ten thousands 3 thousands 4 hundreds 1 ten 2 ones two hundred fifty three thousand, four hundred twelve
Transcript of 2944_029
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© Teacher Created Resources, Inc 29 #2944 How to Add & Subtract: Grade 3
• • • • • • • • • • • • • • • Use Expanded Form7 How to
Learning NotesChildren learn to write numbers in expanded form using words only, numbers only, and numbersand words.
Materials• 3 dice for each child
• poster of the following math vocabulary chart
Expanded Form Standard Form
Words Only Numbers & Words Numbers Only Standard
Teaching the Lesson
Before beginning the work sheets, ask the children for another way to write the number 27. Show thechildren that 27 is the same as 2 tens 7 ones or 20 + 7 (or 27)
Have the children practice writing different 2-, 3-, 4-, and 5-digit numbers using the expanded form.Go over the work sheets with the children. Remind the children to refer to the chart for help if needed.
Learning Tip
Make a photocopy of the chart for each student to keep as a reference tool.
200,00050,0003,000400102
(or)
200,000 + 50,000+3,000 + 400 + 10+2
253,4122 hundred2 thousands
5 ten thousands3 thousands4 hundreds
1 ten2 ones
two hundred fiftythree thousand,
four hundredtwelve
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• • • • • • • • • • • • • Using Expanded Formwith Numbers
#2944 How to Add & Subtract: Grade 3 30 © Teacher Created Resources, Inc.
7 Practice
Numbers can be written in standard form or expanded form.
Standard Form Expanded Form
295or (hundreds) (tens) (ones)
Roll three dice. Record the number that appears on top in both standard form and expandedform.
Numbers Rolled Standard Form Expanded Form
341 300 + 40 + 1
1.
2.
3.
4.
5.
6.
7.
What was the smallest number made?_____________________
What was the largest number made?______________________
200 + 90 + 5
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© Teacher Created Resources, Inc 31 #2944 How to Add & Subtract: Grade 3
• • • • • • • • • • Using Expanded Form withLarger Numbers
7 Practice
R e a d t h e n u m b e r i n t h e w
r i t t e n f o r m .
T h e n w r i t e t h e n u m b e r i n t h e e x p a n d e d f o r m
a n d a l s o i n s t a n d a r d f o r m .
W r i t t e n F o r m
E x p
a n d e d F o r m
S t a n d a r d F o r m
1 .
t h r e e h u n d r e d f o r t y - t w o
t h o u s a n d ,
t w o h u n d r e d t e n
2 .
t h r e e h u n d r e d f o r t y - f i v e
t h o u s a n d , s i x t e e n
3 .
f i v e h u n d r e d t h i r t y t h o u s a n d ,
t w o h u n d r e d o n e
4 .
s e v e n h u n d r e d f i f t y t h
o u s a n d ,
n i n e h u n d r e d e l e v e n
5 .
f o u r h u n d r e d s e v e n t y
- s i x
t h o u s a n d , e i g h t h u n d
r e d
t w e n t y
6 .
o n e h u n d r e d t h o u s a n
d ,
f o u r
h u n d r e d t h i r t y - s e v e n
7 .
e i g h t h u n d r e d s i x t y - o
n e
t h o u s a n d , o n e h u n d r e d
n i n e t y - t w o
3 0 0 , 0 0 0 + 4
0
, 0 0 0 + 2 , 0 0 0 + 2
0 0 + 1
0
3 4 2 , 2 1 0
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• • • • • • • • • • • • • • • • • • • • • Answer Key
#2944 How to Add & Subtract: Grade 3 48 © Teacher Created Resources, Inc.
+ –
Page 281. 59,899
2.–12. Answers will vary.13. 222, 224, 226, 23014. 455, 460, 470, 475, 48015. 341, 361, 371, 381, 401
16. 604, 644, 664, 684, 704Page 30Answers will vary.Page 31
1. 300,000 + 40,000 + 2,000 + 200 +10; 342,210
2. 300,000 + 40,000 + 5,000 + 10 +6; 345,016
3. 500,000 + 30,000 + 200 + 1;530,201
4. 700,000 + 50,000 + 900 + 10 + 1;750,911
5. 400,000 + 70,000 + 6,000 + 800 +20; 476,820
6. 100,000 + 400 + 30 + 7; 100,437
7. 800,000 + 60,000 + 1,000 + 100 +90 + 2; 861,192Page 32
1. 6 hundreds + 2 tens + 3 ones2. 5 thousands + 1 ten + 2 ones3. 3 ten thousands + 9 hundreds +
6 tens + 8 ones4. 2 hundreds + 8 ones5. 7 ten thousands + 3 thousands +
9 hundreds + 9 tens + 7 ones6. 8 thousands + 6 hundreds + 4 tens +
7 ones
7. 3 hundred thousands + 5 tenthousands + 6 thousands +9 hundreds + 1 ten + 1 one
8. 4 hundred thousands + 1 tenthousand + 5 thousands +8 hundreds + 2 tens + 7 ones
9. 4 hundreds + 4 tens + 2 ones10. 6 thousands + 9 hundreds + 2 tens +
8 ones
208; 442; 623; 5,012; 6,928; 8,647;30,968; 73,997; 356,911; 415,827Page 34
1. eight tenths2. one hundredth3. nine tenths4. six hundredths5. seventy-five hundredths6. forty-two hundredths7. .3
Page 35
Page 411. cross off 2,157; 80,121; 7,418; 102
2. cross off 39,643; 29,253; 144,3843. cross off 879; 5794. cross off 66,1755. cross off 9,7806. 805,4577. Answers will vary.
Page 42This is just one solution.
1st row: 340; 344; 351; 3552nd row: 347; 343; 352; 3483rd row: 349; 350; 345; 3464th row: 354; 353; 342; 341
Page 431. 3/62. 1/4
3. 2/44. 2/55. 3/86. The piece of pie becomes smaller.7. The pie is cut into more pieces.8. 1/29. 1/6
10. 1/211. 2/412. 3/613. 4/814. The fractions are the same.15. 1/316. 2/617. 3/9
18. 4/1219. The fractions are the same.Page 44
1. .332. .753. .674. .505. .336. .257. .508. .809. .50
10. .2511. .7512. .6713. .3314. .6015. .25
8. .299. .07
10. .8111. .412. .0513. .0614. .1
1. 33.512. 98.883. 78.694. 1.125. 89.886. 51.44
7. 23.328. 95.789. 87.88
10. 40.8511. 98.8212. 69.89
13. $14.10 + $23.67 = $37.7714. $38.59 – $25.06 = $13.53
1. 49.132. 35.543. 22.484. 41.885. 58.31
6. 94.547. 1.788. 89.619. 45.04
10. 32.37
11. 87.7712. 15.9113. 34.8814. 78.6015. 95.81
16. 12.7117. 20.0418. 36.8519. 36.1920. 64.62
Page 36
Page 38
Page 391. $71.65 – $67.31 = $4.342. $289.24 – $175.88 = $113.363. $151.78 – $82.44 = $69.344. $57.90 – $32.99 = $24.915. $281.37 – $149.26 = $132.116. $336.52 – $221.70 = $114.82
7. Wax Museum8. Waterslide9. $67.31 + $221.70 = $289.01
10. $32.99 + $175.88 = $208.8711. Answers will vary.12. 1 place; Cartoon Land $221.70
Page 401. $59.062. $55.153. $167.634. $272.745. $74.196. $135.287. $24.748. $41.40
9. $141.0110. $264.8711. $213.4512. $320.02
13. $49.5014. $99.0015. Answers will vary.16. new daily rates.
$301–$350
$251–$300
$201–$250
$151–$200
$101–$150
$51–$100
$0–$50
WaterslideAmusement
ParkSafari
AdventurelandMovie Studio
WaxMuseum
CartoonLand
DailyRate
Week-end
DailyRate
Week-end
DailyRate
Week-end
DailyRate
Week-end
DailyRate
Week-end
DailyRate
Week-end
