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Test work 4 on the topic “Using the properties of actions in calculations”

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Test work 4 on the topic “Using the properties of actions in calculations”
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Option 1

  1. Calculate using the properties of arithmetic operations:
  2. a) 35 + 76 + 23 + 24 + 27; b) (200 – 4)-15; c) 723-37 + 723-63; d) 856-39 – 756-39. 
  1. Make up two expressions to solve the problem and solve it.

    To make a New Year’s present, eight bags of caramels and 11 packets of chocolates. The weight of each package is 2 kg. How much in total 

     kilograms of candies were bought?

  1. To make a dessert, take 4 parts ice cream and 3 parts strawberries. How much ice cream do you need to take to make 840 g of dessert? 
  1. Find the value of the expression: 62-14 + 11-62 – 12-25.
  1. Represent the number 300 as a sum of two odd consecutive numbers. Check it.  

Option 2

  1. Calculate using the properties of arithmetic operations:
  2. a) 42 + 86 + 13 + 58 + 14; b) (300 + 4)-25; c) 479-28 + 479-72; d) 657-29 – 557-29. 
  1. Make two expressions to solve the problem and solve it.

    Two motorcyclists left one city at the same time in the opposite direction. The speed of one of them is 65 km/h and the other is 75 km/h. What will be the distance between them in 3 hours?

  1. The dried fruit mixture consists of 5 parts prunes and 4 parts apricots. How many grams of apricots are in 450 g of the mixture? 
  1. Find the value of the expression: 48-11 – 11-16 + 32-19.
  1. Represent the number 398 as the sum of two even consecutive numbers. Check it. 

Option 3

  1. Calculate using the properties of arithmetic operations:
  2. a) 29 + 97 + 65 + 71 + 35; b) (120 – 14)- 5; c) 549-22 + 549-78; d) 397-16 – 396-16
  1. Make up two expressions to solve the problem and solve it.

    Two motorcyclists left the same city simultaneously in different 

    directions. The speed of one of them is 65 km/h and the other is 75 km/h. What 

    distance between them will be in two hours?

  1. A mixture of dried fruit consists of 5 parts prunes and 4 parts apricots. How many grams of prunes are in 450 g of the mixture? 
  1. Find the value of the expression: 17-19 + 17-45 – 17-14.
  1. Represent the number 302 as the sum of two even consecutive numbers. Make a check.  

Option 4

  1. Calculate using the properties of arithmetic operations:
  2. a) 37 + 79 + 22 + 13 + 28; b) (200 + 16)-5; c) 326-43 + 326-57; d) 936-51 – 926-51. 
  1. Make up two expressions to solve the problem and solve it.

    To repair the paintwork, some workers bought 9 cans of white paint and 7 cans of green paint. The mass of each can weigh 4 kg. How many kilograms of paint were bought in total?

  1. To make a dessert, take 4 parts ice cream and 3 parts strawberries. How many strawberries do you need to take to make 840 g of dessert?
  1. Find the value of the expression: 12-32 – 12-18 + 38-14.
  1. Represent number 400 as a sum of two odd consecutive numbers. Make a check.

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