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20 questions

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- 1. Multiple-choice30 seconds1 pt
$180-65$

105

115

125

95

- 2. Multiple-choice30 seconds1 pt
$180-86$

84

94

104

114

- 3. Multiple-choice30 seconds1 pt
$360-185$

145

155

165

175

- 4. Multiple-choice30 seconds1 pt
$360-109$

251

261

271

281

- 5. Multiple-choice30 seconds1 pt
Find the number of degrees in three right angles.

270

180

360

450

- 6. Multiple-choice30 seconds1 pt
Find the number of degrees in two right angles.

270

45

90

180

- 7. Multiple-choice30 seconds1 pt
Find the number of degrees in three quarters of a turn.

45

320

270

130

- 8. Multiple-choice30 seconds1 pt
Find the number of degrees in half a turn.

180

90

250

200

- 9. Multiple-choice1 minute1 pt
Subtract the sum of 26 and 54 from 180.

100

-100

152

-152

- 10. Multiple-choice1 minute1 pt
Subtract the sum of 67 and 16 from 180.

33

-97

-33

97

- 11. Multiple-choice1 minute1 pt
Subtract the sum of 43 and 189 from 360.

214

128

-214

-128

- 12. Multiple-choice1 minute1 pt
Subtract the sum of 56 and 147 from 360.

157

451

-451

-157

- 13. Multiple-choice30 seconds1 pt
Two numbers have a total of 180. One of the numbers is 103. What is the second number?

97

87

77

67

- 14. Multiple-choice30 seconds1 pt
Two numbers have a total of 180. One of the numbers is 143. What is the second number?

37

47

57

67

- 15. Multiple-choice30 seconds1 pt
Three numbers have a total of 180. Two of the numbers are 65 and 94. Find the third number.

21

31

41

51

- 16. Multiple-choice1 minute1 pt
Four numbers have a sum of 180. Two of the numbers are 26 and 38. The other two numbers are equal. Find these numbers.

58

68

78

88

- 17. Multiple-choice30 seconds1 pt
Three numbers have a total of 360. Two of the numbers are 60 and 130. Find the third number.

160

170

180

190

- 18. Multiple-choice30 seconds1 pt
Three numbers have a total of 360. Two of the numbers are 70 and 120. Find the third number.

160

170

180

190

- 19. Multiple-choice1 minute1 pt
Four numbers have a total of 360. Three of the numbers are 30, 60 and 100. Find the fourth number.

170

180

190

200

- 20. Multiple-choice1 minute1 pt
Four numbers have a total of 360. Three of the numbers are 100, 49 and 81. Find the fourth number.

160

150

140

130