Rounding
Expanded and Standard Form
Addition
Subtraction
Word problems
100

Round 36 to the nearest 10 

40

100

What is 700+20+2 in standard form?

722

100

258+165

423

100

358-142

216

100

Miss B has 364 erasers. Her students take 168 of them. How many erasers does she have left? 

196

200

Round 245 to the nearest 100

200

200

Put 345 in expanded form. 

300+40+5

200

481+449

930

200

242+125-205

162

200

Miss B saved $749. Doug saved $338 less than Miss B. How much did Doug save?

$411

300

Round 679 to the nearest 10 

680

300

What is 400+7 in standard form?

407

300

243+378

621

300

Find the difference 

794-283

511

300

Alan is adding 574+421. He adds 6 to 574 to make it 600+421. Then he subtracts 6 from the sum. Does Alan's strategy work?

Yes, he added 6 to make 600. Then took 6 away to find the sum. 

400

Round 1,472 to the nearest 100 

1,500

400

Put 1,204 in expanded form. 

1000+200+4

400

Two parts 

143 and 428

Find the whole

571

400

Find the difference 

752-405

347


400

Kylie has 361 barbie dolls. She gives 127 to Joselynn. Then she buys 245 more barbie dolls. How many barbie dolls does she have now?

361-127=234

234+245=479

500

Victoria raised $1,372 for her school fundraiser. Her mom tells the family Victoria raised about $1,370. How did her mom come up with an estimated number?

She rounded to the nearest 10. 

500

What is seven thousand, two hundred forty five in standard and expanded form?

7,245 

7000+200+40+5

500

Even + Odd is?


Odd


500

Solve 

671-127=?

?+127=671

544

500

Albino earns $263 for doing his weekly chores. The next week he earns $122 more dollars. Then he buys a toy truck for $148. How much money does Albino has left?

263+122=385

385-148=237

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