| 151 | Total surface area of hemisphere (given radius) | -159s.png) |
| 152 | Volume of barrel (cask) (given radii and height) | -(given-radii-and-height)-160s.png) |
| 153 | Middle radius of Barrel (given volume,top radius and height) | -161s.png) |
| 154 | Top or bottom radius of barrel (given volume,middle radius and height) | -162s.png) |
| 155 | Height of Barrel (given volume,middle radius and top radius) | -163s.png) |
| 156 | Euclidean distance between two points of the plane with Cartesian coordinates |  |
| 157 | Euclidean distance between two points in three-dimensional (3D) space with Cartesian coordinates | -space--with-Cartesian-coordinates-221s.png) |
| 158 | Length of hypotenuse of right triangle with Pythagorean theorem |  |
| 159 | Length of side b of right triangle in Pythagorean theorem |  |
| 160 | Length of side a of right triangle in Pythagorean theorem |  |
| 161 | Non-negative square root of a non-negative real number |  |
| 162 | Square of a real number |  |
| 163 | Percentage of a number (amount) in a given total | -in-a-given-total-227s.png) |
| 164 | Calculate a number (amount) (given percentage and total) | --(given-percentage-and-total)-228s.png) |
| 165 | Calculate the total given a percentage of the total |  |
| 166 | Power or exponentiation (given base and exponent) | -235s.png) |
| 167 | n-th term of a geometric sequence or geometric progression with initial value and common ratio |  |
| 168 | Time needed for two workers to do a job together (group work) (given individual capacities) | -(given-individual-capacities)-237s.png) |
| 169 | n-th square pyramidal number or pyramid number |  |
| 170 | n-th term of arithmetic progression (AP) or arithmetic sequence (given common difference) | -or-arithmetic-sequence-(given-common-difference)-239s.png) |
| 171 | Initial term of arithmetic progression or arithmetic sequence (given n-th term and common difference) | -240s.png) |
| 172 | Common difference of arithmetic progression or arithmetic sequence (given first and n-th terms) | -241s.png) |
| 173 | Arithmetic series (given initial term,n-th term,arithmetic progression,arithmetic sequence) | -242s.png) |
| 174 | Arithmetic series (given initial term,common difference,arithmetic progression,arithmetic sequence) | -243s.png) |
| 175 | Initial term of arithmetic progression or arithmetic sequence (given n-th term,arithmetic series) | -244s.png) |
