Show:
Multiplication
Addition Patterns
Vocabulary
Estimate by Rounding
Addition
100

9 x 1

9

100

What is 1 more than 75?

76

100

What does Standard Form mean?

numbers written in the regular way, 452

100

Estimate by rounding to the nearest 10. 

75 + 12

90

80 + 10 = 90

100

92 + 64

156

200

Which is greater 35 or 53?

53

200

243; 343; 443; 543......

What is the pattern?

Adding (by 100) 

Next Answer: 643

200

What is a Digit?

a number 0-9

200

Round to the greatest place. 

634 + 788

1,400

600 + 800 = 1,400

200

387 + 251

638

300

3 x 3

9

300

495, 505, 515, ___, ___, 545 

Name the missing numbers.

What is the pattern?

Adding by 10

Next Number: 

525, 535


300

When we want to get a number close to the actual number/value, what is that called?

an estimate

300

Estimate by rounding to the nearest hundred.

305 + 853

1,200

300 + 900 = 1,200

300

834 + 486

1,320

400

6 x 3

18

400

10 more than 723

100 more than 723

1,000 more than 723

733;   823;  1,723

400

2 x 10

20

400

Estimate by rounding to the nearest ten. 

578 + 409

990

580 + 410 = 990

400

6,345 + 2,946

9,291

500

7 x 4

28

500

1,000 more than 9,876

100 more than 9,876

10 more than 9,876

1 more than 9,876

10,876;   9,976;   9,886;   9,877

500

5 x 8

40

500

Estimate by rounding to the nearest ten.

2,356 + 4,810

7,170

2,360 + 4,810 = 7,170

500

7,895 + 3,647

11,542