Secondary 1 Math Challenge

Which of the following is a set of prime numbers?

• 1, 3, 5, 7

• 1, 2, 3, 5

• 2, 3, 5, 7

• 7, 12, 27, 37

Tags

CCSS.4.OA.B.4

36 is a perfect square because it can be

• divided by 2.

• a multiple of 2.

• an even number

The altitudes of some places are shown below:

Cascade Mountain: 2998m

Death Valley: - 86m

Bukit Timah Hill: 164m

Karagiye Depression: -132m

Arrange these places in ascending order of their altitudes

• Cascade Mountain, Bukit Timah Hill, Death Valley, Karagiye Depression

• Death Valley, Karagiye Depression, Bukit Timah Hill, Cascade Mountain

• Karagiye Depression, Death Valley, Bukit Timah Hill, Cascade Mountain

• Bukit Timah Hill, Cascade Mountain, Death Valley, Karagiye Depression

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

Amsterdam's Schipol Airport in Holland is 4m below sea level.

Baku, the capital of Azerbaijian, is 24m below Schipol Airport.

What is the altitude of Baku?

• -28m

• -20m

• 20m

• 28m

Tags

CCSS.7.NS.A.1C

• 28

• -13

• 3

• -3

Tags

CCSS.7.NS.A.1C

• -9

• 9

• 27

• -27

Tags

CCSS.8.EE.A.1