3rd Grade Review

Lattice

100

14 x 54 

756

200

23 x 89

2047

300

43 x 165

7,095

400

406 x 27

10,962

500

972 x 592

575,424

Russian Peasant Method

100

12 x 40

480

200

20 x 32

640

300

32 x 55

1,760

400

55 x 110

6,050

500

102 x 210 

21,420

It's totally random

100

220₄ = ? ₁₀

40₁₀

200

Mrs. Prochnow's husband and a famous cartoon character's best friend have the same name. (This famous character lives in a fruit NOT above ground)

Patrick

300

A cowboy rode in on Friday. He stayed for three days and left on Friday. How is this possible?

The name of the horse is Friday

400

What does 54 look like in Mayan Numbers?

. . 

. . . .

__

__

500

MMMCDIII

3,403

Napier Rods

100

23 x 16 

368

200

54 x 18

972

300

62 x 94 = 

5,828

400

304 x 56

17,024

500

825 x 721 = 

594,825

????

100

9    2    3    14

9 + 3 = 12

14 - 2 = 12

12 + 12 = 24

200

DCCXIV

714

300

21  4  2  5

5 - 4= 1

21 + 2 + 1 = 24

400

What is 948 in Roman Numerals?

CMXLVIII

500

24  14  6  9

14 - 9 = 5

6 - 5 = 1

24 x 1 = 24