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Expii Solve

Creative math puzzles that challenge you to think differently. Each set has five problems, worth 1, 2, 4, 8 and 16 points.

Your progress and community milestones

Set 70

Radio Transmission

Set 69

Earth Day

Set 68

Game Night

Set 67

April Fools

Set 66

March Madness

Set 65

Spring

Set 64

Pi Day

Set 63

Alexander Graham Bell

Set 62

Oscars

Set 61

Susan B Anthony

Set 60

Fashion

Set 59

Superbowl

Set 58

Lunar New Year

Set 57

Winter

Set 56

New Year

Set 55

Holidays

Set 54

Star Wars

Set 53

诺贝尔文学奖

Set 52

音乐

Set 51

感恩节

Set 50

硬币翻转

Set 49

夏令时

Set 48

大选

Set 47

排灯节

Set 46

万圣节

Set 45

探索海洋

Set 44

社交

Set 43

汽车

Set 42

银河系漫游指南

Set 41

难解之谜（纪念阿加莎·克里斯蒂著名的侦探小说家）

Set 40

回到学校

Set 39

劳动节

Set 38

气候变化

Set 37

国家数学博物馆

Set 36

奥林匹克

Set 35

奥运

Set 34

口袋妖怪

Set 33

热带亚洲

Set 32

数学奥林匹克

Set 31

网球

Set 30

美国独立日

Set 29

反射

Set 28

Strategy

Set 27

Paths

Set 26

Hockey

Set 25

Averages

Set 24

Chance

Set 23

Survey and Measurement

Set 22

Dinner

Set 21

Transport

Set 20

Earth Day

Set 19

Spring

Set 18

Step by Step

Set 17

Paradoxes

Set 16

Number Theory

Set 15

Pi Day

Set 14

Basketball

Set 13

Biology

Set 12

Oscars

Set 11

Meet Up

Set 10

Valentine's

Set 9

Football

Set 8

Election

Set 7

On the Trail

Set 6

Lottery

Set 5

Bargains

Set 4

Star Wars

Set 3

Dairyland

Set 2

Travel

Set 1

Cut the Rope

Type a concept, like “slope” or “photosynthesis”.

↑ ↓ to choose · Enter to openSearch explanations and problems