Rounding
Estimating
Patterns
Addition
Subtraction
100

What is 54 rounded to the nearest ten?

50

100

Estimate 32+18

30+20=50

100

What are the next three numbers in the pattern?

3, 7, 11. . . 


Pattern: +4

15, 19, 23

100

What is the value of 46+35?

81

100

Find the difference. 

563-296

247

200

What is 182 rounded to the nearest hundred?

200

200

About how much is 46+59?

50+60=110

200

Jamauri has decided to start jogging. 

Day 1 - 5 minutes

Day 2 - 11 minutes

Day 3 - 17 minutes

If he continues this pattern, how long will he jog on days 4 and 5?

Day 4 - 23 minutes

Day 5 - 29 minutes

200

What is the sum of 438+372?

810

200

Find the difference.

206-178

28

300

what is 327 rounded to the nearest ten?

330

300
About how much is 147-93?

150-90=60

300

Zoe wants to increase her reading stamina. 

Day 1 - 25 minutes

Day 2 - 32 minutes

Day 3 - 39 minutes

If she continues the pattern, how long will she read on day 5?

Day 5 - 52 minutes

300

_____ - 463 = 217

217+463=680

300

347+______=863

863-347=516

400

Which two numbers round to 600 when rounded to the nearest hundred?

a. 547

b. 586

c. 643

d. 668

b. 586

c. 643

400

Estimate 345-113.

350-110=240

OR

300-100=200

400

Henry collects sea glass at the beach. Each week he collects a little more. 

Week 1 - 12 pieces

Week 2 - 17 pieces

Week 3 - 22 pieces

If he continues this pattern, how many pieces would he collect on the 6th week?

Week 6 - 37 pieces

400

Georgia has 47 toys in her toy chest. Amara has 14 more toys than Georgia. How many toys does Amara have?

47+14=61 toys

400

Amari has 236 pieces of Halloween candy. He gives 117 of them to his little sister, and 84 to his friends. How much candy does Amari have left?

236-117=119

119-84=35

35 pieces of candy

500

Which two numbers round to 280 when rounded to the nearest ten?

a. 274

b. 277

c. 292

d. 283

b. 277

d. 283

500

About how much is 468+231?

470+230=700

OR

500+200=700

500

Juliet has a rabbit. The rabbit eats 7 carrots a day. Each month, the rabbit needs to eat 3 more carrots a day. How many carrots will the rabbit eat 3 months from now?

16 carrots per day

500

Mia has collected 27 pieces of sea glass. Nadia has collected 46 more pieces than Mia. How many pieces of sea glass have they collected altogether? 

27+46=73

73+27=100

100 pieces

500

Maggie has read 243 books this year. Brilyn has read 57 less books than Maggie. How many books has Brilyn read?

243-57=186

186 books

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