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近似值

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Nicole Yee
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0% found this document useful (0 votes)
746 views38 pages

近似值

Uploaded by

Nicole Yee
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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单元一 10 000以内的整数

四舍五入
0,1,2,3,4
5,6,7,8,9
千 百 十 个

4 382 4 000
千位近似值

千 百 十 个

2 157 2 000
千位近似值

千 百 十 个

2 964 3 000
4 840 5 000
8 365 8 000
3 419 3 000
千位近似值
4 921 5 000
7 662 8 000
6 347 6 000
千位近似值
百位近似值

千 百 十 个

2 157 2 200
百位近似值

千 百 十 个

3 521 3 500
百位近似值

千 百 十 个

8 370 8 400
5 840 5 800
3 153 3 200
6 555 6 600
百位近似值
4 427 4 400
2 592 2 600
7 485 7 500
百位近似值
十位近似值

千 百 十 个

4 148 4 150
十位近似值

千 百 十 个

6 263 6 260
9 233 9 230
7 148 7 150
5 625 5 630
十位近似值
8 347 8 350
3 986 3 990
4 321 4 320
十位近似值




1
0

5 040

3 200

5 000
活动本第10页
单元一 10 000以内的整数
5 995 6 000

6 005 – 5 = 6 000
6 000 – 5 = 5 995
逆序地数

3 188 3 178 3 168

3 198 — 10 = 3 188

3 188 — 10 = 3 178

3 178 — 10 = 3 168
7 240 +9 = 7 249
7 249 +9 = 7 258
一百一百地数

2 345 2 445 2 545 2 645 2 745 2 845

100 100 100 100 100

3 346
3 246,____,3 446, 3____,
546 3 646
____
一千一千地数

1 326 2 326 3 326 4 326 5 326 6 326

1000 1000 1000 1000 1000

2 246
1 246,____,3 246, 4 246 ____
____, 5 246
单元一 10 000以内的整数




1
1 ➕2

9 464

➕6

5 368

➖3

1 207


本 ➕9

1
1
页 7 604

➖1 000

3 008


➕4


1 8 262
2

➖2

4 770

➖7

6 412


本 ➖5

1
2
页 9 395

➕10

3 000




1
3
页 ➖100
3 514

6 910
➖5

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