Childcraft: The How and Why LibraryWorld Book, Inc. Staff |
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Page 61
... abacus ( AB uh kuhs ) . Abacus means " slab " or " table . " But this name comes from an ancient word that means " dust " or " sand . " The first abacus was probably a tray covered with dust or sand . Counting marks could be made with a ...
... abacus ( AB uh kuhs ) . Abacus means " slab " or " table . " But this name comes from an ancient word that means " dust " or " sand . " The first abacus was probably a tray covered with dust or sand . Counting marks could be made with a ...
Page 62
... abacus An abacus is a lot of fun to use . And you can make one very easily . To make an abacus like the ones used long ago , you'll need forty pebbles and a piece of cardboard , wood , or stiff paper . With a ruler , draw three lines on ...
... abacus An abacus is a lot of fun to use . And you can make one very easily . To make an abacus like the ones used long ago , you'll need forty pebbles and a piece of cardboard , wood , or stiff paper . With a ruler , draw three lines on ...
Page 62
... abacus An abacus is a lot of fun to use . And you can make one very easily . To make an abacus like the ones used long ago , you'll need forty pebbles and a piece of cardboard , wood , or stiff paper . With a ruler , draw three lines on ...
... abacus An abacus is a lot of fun to use . And you can make one very easily . To make an abacus like the ones used long ago , you'll need forty pebbles and a piece of cardboard , wood , or stiff paper . With a ruler , draw three lines on ...
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Common terms and phrases
abacus Ahmose angle avoirdupois beads biggest number birthday cabbages chance Childcraft art Childcraft photo color corners counting machine cube distance divided Dodecahedron dots Egyptian numeral feet Fibonacci sequence fingers five flat shape Flatland four pennies fractions gallon girl goat googol groove Here's inches Judie Anderson kilometers kind large numbers length LIDERIT long ago look magic number magic square marks Mathemagician mathematics measure meter metric system miles million Möbius strip move multiply nine number system odd number ounce pair of babies pebbles Phantom Tollbooth pick pound problems push puzzles rabbits Ribidip Roman numerals Romans seven shape called sheep side sixteen solid shape square number stands star group called string tails tell tens column thousand years ago toothpicks triangle TRUST twelve uncia unit vampires water clocks weight word that means write say wwww zero