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## MATHEMATICAL CROSSWORD PUZZLES

### Clue:

ACROSS
1. 78,4 times ten. 157 times five, minus seventy-four.
2. 1827 minus 977. 117634 minus 1001, minus 34531.
3. Three cubed minus four. 253 plus 242. Forty-nine plus thirty-nine.
4. 308 times three, plus eight. 25% of 28. Three cubed divided by three. Sides in a octagon.
5. 1397 minus 724. 0,614 times one thousand.
6. Two factorial. Three squared minus two. It's the double of three plus one. Thirty-three plus 261, plus 231.
7. Nine times nine, minus twenty. Ten times eleven, plus four. Its half is seven.
8. 9820 plus 6080, plus 23294. 381 minus 130.
9. One times 850, plus six. Eighty-two times four, minus fifty-three.

DOWN
1: Five hundred plus 329. 360 minus ninety-seven.
2: 99575 minus 839, minus 23400. 19,8 times ten.
3: Seventy-seven plus three. 1052 minus 775. Three multiplied by five.
4: The square root of 16. 50% of eight. Term that in Fibonacci series goes after 2. 247 minus twenty, minus thirty-one.
5: 530 plus 437, minus seventy. 7,14 times one hundred.
6: 450 divided by five, plus 635. Three multiplied by two. Three and one. The first prime number.
7: One half of twenty-two. 680000 divided by one thousand, plus 235. In binary representation is 11011.
8: 168 divided by six, plus eighty. 21081 times two, minus seven.
9: Thirty-seven plus 251. 1421 minus 880.