Math Quiz
Grade 7 Embun Pagi Islamic School-Junior High
Name : ________________
1. Find the prime factorisation of each following numbers:
a. 189
b. 315
2. Find the value of each of the following by using prime factorisation:
a. √1764
b. √2304
3. Find the value of the folllowing:
a. ∛3375
b. ∛12167
4. Find the Highest common factors of each of the following sets of numbers:
a. 66 and 78
b. 140, 224, and 560
5. Find the HCF and LCM of 315 and 720!
6. The temperature at the top of Jaya Wijaya Mountain was 7 degrees at 5.00 PM. At 4.00 AM the
next morning, the temperature had dropped to -5. What is the difference between those two
temperature?
7. Evaluate each of the following:
a. (– 15) + (– 26)
b. 30 + (– 15)
c. (– 25) + 26
3
1
d. −2 4 + (−1 4)
1
5
2
47
1
3
1
(−6 3) −
e. 1 + (−1 )
f.
+
4
(− 21)
8. Fill in the each box with > or <
4
−5
a. 0
b. −
12
2
−5
c. −7 − 38
8 + (−55)
d. −5 × 15
−40 ÷ (−8)
9. Imam, Sholeh, and Fakhri work as volunteers at a local kennel. Imam gives the dog bath every 4
days, Sholeh clean out cages every 6 days, and Fakhri help the receptionist every 3 days. Today
they all work together, when will they work together again?
10. Participants from Japan, Korea, and China will be attending a conference. 112 of them are from
Japan, 98 are from Korea, and 84 are from China. The organiser wishes to group them into
discussion groups such that the participants are distributed equally among the groups. The
number of discussion topics that the organiser needs to prepare depends on the number of
discussion groups formed.
a. What is the greatest number of discussion topics that the organiser has to prepare for the
conference?
b. How many Korea participants are in each discussion group?