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Order of operations in calculations

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Variant 1

  1. Write down the expression and find its value: a) the difference of 720 and the product of 23 and 70; b) the quotient of the sum of 24 and 36 and the difference of 25 and 10.
  2. Find the value of the expression: a) 78 – 234:18 + 43; b) 92 + 16-(121 – 85); c) 900 – (138 + 805:23)-5.
  3. a) Solve the problem. For a school party they bought 12 boxes of 9 patties each and 18 boxes of 4 patties each. All the patties are evenly divided on 15 plates. How many cakes on each plate? b) Write the expression for the problem.

 

Variant 2

  1. Write down the expression and find its value: a) the product of the quotient of 72 and 12 and 300; b) the product of the quotient of 85 and 44 and the sum of 15 and 14
  2. Find the value of the expression: a) 102 – 85 + 735:21; b) (119 – 96)-(74 + 27); c) (1009 – 918:27-5)-2.
  3. a) Solve the problem. Five sacks of potatoes, 24 kg each, and four sacks of 18 kg each were brought to a store. All the potatoes were evenly packed in bags of 3 kg each. b) Write the expression for the problem.

 

Variant 3

  1. Write down the expression and find its value: a) the sum of the quotient of 208 and 3 and the product of 25 and 12; b) the difference of 670 and the sum of 195 and 76.
  2. Find the value of the expression: a) 672:28-45 – 898; b) 11-(1040 – 619) + 752; c) 1953 + (17432 – 56-223):16.
  3. a) Solve the problem. For a school party they bought 16 boxes of chocolates, 10 of each, and 12 boxes of 8 chocolates each. All the chocolates were evenly distributed on 13 plates. How many chocolates are on each plate? b) Write the expression for the problem.

Variant 4

  1. Write down the expression and find its value: a) product of the sum of 38 and 22 and the difference of 132 and 52; b) quotient of 680 and the difference of 97 and 57
  2. Find the value of the expression: a) 1476 – 252:21-24; b) 7200 – (298 + 142)-15; c) 6010 + (130-52 – 6889:83).
  3. a) Solve the problem. Eight boxes of tomatoes, 16 kg each, and 10 boxes of tomatoes, 12 kg each, have been brought to the store. All the tomatoes were evenly packed in bags of 2 kg each. How many bags did they end up in? b) Write the expression for the problem.

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