#### Number of problems found: 88 5 triangles + 1 square = how many sides in all Add and write the result again as hours, minutes, seconds: 2hodiny45min15s + 1h20m50s = At a weather centre, the temperature at midnight was -2 degree Celsius and by noon it had raised 4 degree Celsius. What is the new temperature? Why does 1 3/4 + 2 9/10 equal 4.65? How do you solve this? Add this two mixed numbers: 1 5/6 + 2 2/11= Fill letters instead of digits so the indicated sum (equal letters represent equal digits). What number is hidden under the letter J? A A H A H O A H O J -------------------------- 4 3 2 1
• Roman numerals 2+ Add up the number written in Roman numerals. Write the results as roman numbers.
• Roman numerals + Add up the number written in Roman numerals. Write the results as a decimal number.
• Televisions Television is the fifth most expensive and tenth cheapest TV. How many different TVs are in stores?
• Opposite numbers Calculate opposite numbers (additive inverse) to given ones:
• Operations Sum of the numbers 1.01 and 3.35 multiply by the difference of numbers 6.69 and 1.39.
• Multiples What is the sum of the multiples of number 7 that are greater than 30 but less than 56?
• Evaluate expression If x=2, y=-5 and z=3 what is the value of x-2y
• Identity 123456789 = 100 Use only three plus or minus characters to correct previous identity/equation.
• Tulips and daffodils Farm cultivated tulips and 211 units on 50 units more daffodils. How many spring flowers grown together?
• This morning This morning it was 80 degrees F outside the temperature increased 12 degrees F. What is the temperature now?
• Expression 6 Evaluate expression: -6-2(4-8)-9
• Decimal expansion Calculate: 2 . 1 + 0 . 10 + 7 . 10000 + 4 . 1000 + 6 . 100 + 0 . 100000 =
• With bracket Calculate (evaluate) simple mathematical expression with a negative numbers and a bracket: 13+15*5-2*(-6)
• Brother and sister When I was 8, my sister was 4, and now I am 18. How old is my sister?

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