Rounding
Place Value
Subtraction
Addition
Story Problems
100

Round to the nearest tens: 47

50

100
Write the number three hundred eighty six

386

100

89-23=

66

100

90+45=

135

100

Kaidan collected 45 gummies. His friend Silas collected 16 more. How many gummies do they have altogether?

61

200

Round to the nearest tens: 32

30

200

Write the number equal to 2 ones, 4 hundreds, and 0 tens

402

200

91-56=

35

200

487+34=

521

200

Eli collected 318 marbles. His friend Michael collected 83 marbles. How many marbles do they have in all?

401

300

Round to the nearest hundreds: 456

500

300

Write the number that is 4 ones, 5 hundreds, and 7 tens

574

300

450-244=

206

300

521+234=

755

300

Mia had 71 stuffed animals. She gave 35 to her friend Justice. How many stuffed animals does Mia have left?

36

400

Round to the nearest hundreds: 823

800

400

In the place value math drawing, what number is 5 boxes, 8 sticks, and 3 circles.

583

400

325-257=

68

400

999+456=

1,455

400

Write the addition equation for this problem: 

895-623=272

272+623=895

500

Round to the nearest tens: 467

470

500

In this place value drawing, 9 circles, 3 sticks, and 8 boxes

839

500

200-128=

72

500

999+999=

1,998

500

Chloe earned 621 points in the first round. She earned another 278 points in the second round. What is a reasonable estimate for the points Chloe earned?

600+300=900