MER

Fractions

10

Simplify the following fraction:

15/25

3/5

500

3/5 + 8/10 + 9/5 =

16/5 or 3 1/5

Multiplication

10

12x8

96

40

300003 x 400

120001200

500

123*987

121401

Negative numbers

10

Calculate the sum of -7 and -3.

-10

40

-7x5+-9-4+7x3

−27

500

−2x+5=−11

x=8

Wordproblems

10

Sara has $20. She borrowed $15 from her friend and then spent $10 on lunch. How much money does she have left?

Sara ends up with -$5, which means she owes $5 after borrowing money and spending on lunch.

500

Ronja and Miranda are planning to create circular flower beds in their garden. The diameter of Ronja's flower bed is twice the diameter of Miranda's flower bed. Together, the total area of both flower beds is 314 square meters. Determine the radii of both flower beds.

• The radius of Miranda's flower bed is approximately 4.47 meters.
• The radius of Ronja's flower bed is approximately 8.94 meters.

Order of operations

10

2+3×(4−1)

11

500

6+232×(32−4)×(5−33)

11