Other
62 problems
Total length of a bent string
Measure one length in different units
Daylight length from sunrise and sunset
Convert between clock time systems
Find a city's time from the offset
Complete and interpret a data table
Complete and interpret a graph
Total Length with Gaps or Overlaps
Distance between points on a line
Add and subtract by splitting numbers
Broken Clock: Constant Error Rate
Round-Trip Elapsed Time
Direction and distance reasoning
Meeting time of two movers
Comparing speeds and distances
Name shaded part as a fraction
Shade a fraction of a shape
Fraction word problems via backward reasoning
Work backwards in fraction word problems
Read pictographs for category totals
Arcs centered at polygon vertices
Perimeter of a figure enclosing circles
Compare and order fractions
Rename large numbers by place value
Draw the outline of a folded rectangle
Unfold paper after cutting a piece out
Ancient Egyptian fair sharing of loaves
Several ways to build unit-fraction sums
How perimeter and area are related
Area of a complicated composite figure
Measure a figure in copies of a unit piece
Trapezoid area found four different ways
Prime factorization two ways
Perfect squares from even prime exponents
Recover a missing count from the mean
Batting average and win rate
Work rates add, times do not
Newton's cows: grass grows while eaten
Volume of a composite solid
Volume of prisms and pyramids
Water height from base area
Catching up: subtract the two speeds
Compare speeds by a common unit rate
Meeting head-on: add the two speeds
Boat speed with and against a current
Round trip at two different speeds
Train passing completely through a tunnel
Percent change in a price
Recover the whole from a percent
Surface area of a drilled cylinder
Volumes of cylinders and cones
Volumes of assorted solids
Volume of a solid of revolution
Undo repeated scaling by a fraction
Find the whole from a fraction of a fraction
Perimeter of a sector and of a sector ring
Bounding pi with inscribed and circumscribed polygons
Perimeter of a figure with arcs and segments
Area of a path of constant width
Area of the shaded part (1)
Path length traced by a rolling circle's center
Path length traced by a rolling triangle's vertex