# Practice Math Challenge Questions for Grade 7 Part 1

Time: 1 Hour Source: 2011 Math Challenge 1st Year

- What is the name of N = {1, 2, 3, 4, 5 …} ?
- Round 434.243 to the nearest ten.
- What is the greatest common factor of 48 and 60?
- What is the greatest common multiple of 48 and 60?
- What rational number is between 1/5 and 1/7?
- Which is bigger 11/13 or 13/15?
- What is $latex 2 1/3+3 1/7–4 2/3?
- Evaluate 2 1/3×3/4÷1/3
- Change to scientific notation 0.000261.
- To which subset of the set of all real number does belong?
- Peter has a small farm measuring 240 m by 310 m. how many hectares of land does peter own?
- A cylindrical water tank has a diameter of 1 m and a height of 1.25 m. what is the capacity in liters?
- Two numbers are in the ration of 3:5. Their sum is 88, what is the bigger number?
- A picture is 20 cm by 60 cm. If ts enlarged so that its shorter side becomes 30 cm, what is the area of the resulting picture?
- Evaluate the expression 3x
^{2}+ 4x^{2}– x at x=2. - Simplify 2(x
^{2}+1) +3(x+1)^{2}-3x. - Simplify 2(x
^{2}+x-1) – 3(x-2)^{2} - Multiply (a
^{2}+b) by (a-b) - Evaluate ( │-14│-│-26│ + 36)÷(│-16│ -│-10│)
- A piece of cartolina is 20 cm by 60 cm. If it is enlarged so that its shorter side becomes 30 cm, what is the area of the resulting picture?
- A small passenger plane flew a distance of 54 km in 70 minutes what was the speed in kilometers per hours to the nearest km?
- What is the sum of 50 counting numbers 1+2 +3+ . . .+49 + 50?
- Four consecutive odd numbers are added. If the smallest of the 4 is 2x-5, what is their sum?
- An edge of a cube is x+3 cm. what is its volume?
- What is the remainder if 3x
^{2}-2x+2 is divided by x-2?

### Dan

Blogger and a Math enthusiast. Has no interest in Mathematics until MMC came. Aside from doing math, he also loves to travel and watch movies.

#### Latest posts by Dan (see all)

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i think number 12 should be 981.25L

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