Chapter 1-5 Review

Number & Estimate

100

七千三百五十六的standard form

7356

200

Please write the Expanded Form of 3439

Expand Form: 3000+400+30+9

300

Round 349 to the nearest hundreds

300

400

Round 329 to the nearest tens

330

500

_____, 219, 229, ____, 249, ____

_____,1001,1011,1021,_____,_____

209, 239, 259

991, 1031, 1041

Word Problem--中文

100

陈老师有321本书，李老师有217本书。她们一共有多少书？

321+217=538

她们一共有538本书。

200

陈老师有1935个苹果，李老师有3592个苹果。李老师比陈老师多多少苹果？

3592-1935=1657

李老师比陈老师多1657个苹果。

300

田晓玲有3165个礼物，董恺立比田晓玲少1958个礼物。她们一共有多少礼物？

董恺立：3165-1958=1207

一共：3165+1207=4372

400

何宇航在IXL上做了1358个数学题。他比宋媛媛多做了293道题。他们一共做了多少题？

1358-293=1065

1358+1065=2423

500

麦天琪比宁靖远矮10cm

宁靖远比莫美诗高15cm

莫美诗128cm。麦天琪有多高？

宁靖远：128+15=143cm

麦天琪: 143-10=133cm

Word Problem--英文

100

Chen Laoshi has 234 chocolate bars. Li Laoshi has 593 chocolate bars. How many chocolate bars do they have in total?

234+593=827

200

Addy and her sister share 313 toys. Addy has 129 toys. How many toys does her sister have?

313-129=184

300

A TV cost $438 and a book shelf cost $199 less than the TV. How much do they cost in total?

bookshelf: 438-199=239

Total:239+438=677

400

There are 324 women, 129 men, and 218 children at LILA. How many more adults than children are here at LILA?

Adults: 324+129=453

453-218=235

500

Elly wants a new iPad for Christmas.

She knows that an iPad is $323 less than a TV.

A TV is $20 more than an iPhone. An iPhone is $923. How much does it cost to buy Elly an iPad for Christmas? 

TV: 923+20=943

iPad: 943-323=620

加法

100

243+421

243+421=664

200

325+763=

325+763=1088

300

1249+2493=

1249+2493=3742

400

5329+1248=

5329+1248=6577

500

6452+2980+1934

11366

减法

100

847-253=

847-253=324

200

8243-3639=

8243-3639=4604

300

5461-4329=

5461-4329=1132

400

8134-1999=

8134-1999=6144

500

8245-7399=

8245-7399=846