MATHEMATICAL CROSSWORD PUZZLES

ACROSS
1. 253 plus thirtynine.
50% of twelve.
203 plus 206, minus twentyone.
2. Seven squared minus ten.
7140 divided by ten, minus six.
Its half is 27.
3. Its half is four and one half.
25% of 28.
In binary representation is 111.
50% of fourteen.
4. 469 minus fiftythree, minus twentythree.
1108 minus 456.
5. Its double is 106.
Twentyfour times seven, minus eightyfive.
6. 117 plus 652.
702 minus eightyeight, plus fortythree.
7. Five times two minus one.
Angles in a heptágono.
Term that in Fibonacci series goes before 13.
In binary representation is 1000.
8. In Roman numerals is LIV.
567 divided by three.
131 minus thirtyfive.
9. 1932 divided by four.
10% of 90.
Eightysix times seven.
DOWN
1: 666 minus 427.
Two plus three.
1025 minus thirtythree, minus thirtyeight.
2: 18000 divided by one thousand, plus eightyone.
1600 divided by twentyfive, plus 273.
Two to the power five plus sixteen.
3: 25% of eight.
Sides in a nonagon.
Two times three.
Twelve minus nine.
4: 910 minus 423, plus 286.
1046 minus 870, plus 795.
5: Sexagesimal system base.
Fiftytwo times three, minus sixtyseven.
6: Fortytwo times twenty, plus thirtysix.
873 minus 788, plus 604.
7: One plus two.
Straight lines in a staff.
Sides in a pentagon.
10% of 60.
8: 220 minus 201, plus sixtysix.
287000 divided by one thousand.
Eightyfour plus six.
9: 720 divided by nine, plus 767.
Sides in a triangle.
0,862 times one thousand.