# Multiplication - 7th grade (12y) - examples

- Z7-I-4 stars 4949

Write instead of stars digits so the next write of product of the two numbers to be valid: ∗ ∗ ∗ · ∗ ∗ ∗ ∗ ∗ ∗ ∗ 4 9 4 9 ∗ ∗ ∗ ∗ ∗ ∗ 4 ∗ ∗ - Compare

Compare fractions ?. Which fraction of the lower? - Root

The root of the equation ? is: ? - Flags

How many different flags can be made from colors red, white, blue, black, yellow, green, purple, gray, orange so that each flag consisted of three different colors? - Above 100%

What is 155% of 210? - Promile

Calculate the 2.9 ‰ of 629. - Blood

In human body the blood is about 7.7% body weight. How many kilograms of blood is in the human body with weight 96 kg? - Logic

A man drinks a barrel of water for 31 days, woman for 58 days, for how many days they drink barrel together? - Medicament

Same type of medicament produces a number of manufacturers in a variety of packages with different content of active substance. Pack 1: includes 60 pills of 1200 mg of active substance per pack cost 18 Eur. Pack 2: includes 30 pills of 1000 mg of active s - Camp

In the camp are children. 1/4 went on a trip, 1/2 went to bathe and 99 children remained in the room. How many children are in camp? - Coin and die

Flip a coin and then roll a six-sided die. How many possible combinations are there? - Drunk man

Drunkman has 2.1‰ of alcohol in the blood. How many grams of alcohol has in blood, if he have 6 kg of blood? - LCM

What is the least common multiple of 28, 42, 22? - Time

Write time in minutes rounded to one decimal place: 1 h 42 m 22 s. - Chocolate

How many times should be broken chocolate consisting of 5 × 6 pieces to get the 30 parts? - Theater

The theater has in each row with 11 seats. Ticket to the first 8 rows is for 198 KČ. In next rows is for 84 KČ. The theater was completely sold out. Revenue was 34980 KČ. How many rows are in the theater? - Discount

Ladies sweater was twice discounted. First by 17%, then by 17% of the new price. Its final price was 72 USD. Determine the original price of sweater. - Bonus

Gross wage was 1113 USD including 16% bonus. How many USD were bonuses? - Pool

The swimming pool is 6 m wide and 14 m long and 185 cm deep. How many hectoliters of water is in it, if the water is 9 cm below its upper edge. - Average

Average of 5 numbers is 135. What is its sum?

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