Math Flashcard for Chinese Camp 2020

Front

Sum of the first 61 positive integers?

Back

1891

Front

Solve: \(\sqrt{9+4y}=11\). What is y?

Back

28

Front

Find z if \( \frac{1}{\sqrt{z}}=5 \)

Back

1/25

Front

Wallet-size photo of my cat: 3 cm x 5 cm. Larger photo area: 135 cm². Width of larger photo?

Back

9 cm wide

Front

Robert has 4 blue, 5 black, and 6 white shirts. What percent are white?

Back

40%

Front

Simplify \( \sqrt{(5 \times 10 \times 7)^2} \)

Back

350

Front

Simplify \( \sqrt{6^5 + 6^5 + 6^5 + 6^5 + 6^5 + 6^5} \)

Back

216

Front

Garage with 17 vehicles and 56 wheels.

Back

11 cars and 6 motorcycles.

Front

My mom's candy jar has 56 pieces of candy with a butterscotch to jelly bean ratio of 5:2. To change the ratio to 2:1, how many jelly beans should I add?

Back

4

Front

If 5 woodchucks chuck 50 cords in 4 days, how many cords can 7 woodchucks chuck in 6 days?

Back

105