Here's the completed crossword puzzle with explanations for each answer:
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Across
1. r + 10 means the _SUM_ of a number and 10.
→ “+” indicates addition; sum is the result of addition.
3. 2 x 3 + 4 equals _TEN_.
→ Order of operations: 2×3 = 6, then 6+4 = 10.
5. 2 x (3 + 4) equals _FOURTEEN_.
→ Parentheses first: 3+4=7, then 2×7=14.
7. 5n means 5 _TIMES_ a number.
→ In algebra, 5n means 5 multiplied by n.
10. 4 more than 5 is _NINE_.
→ 5 + 4 = 9.
11. 8n means a number _MULTIPLIED_ by 8.
→ Same as #7 — implied multiplication.
14. 12 minus 4 equals _EIGHT_.
→ 12 - 4 = 8.
15. n – 2 means a number _DECREASED_ by 2.
→ Subtraction reduces the value → decreased.
16. n + 7 means 7 _MORE_ than a number.
→ Addition increases → “more than” implies addition.
18. 3 less than 5 is _TWO_.
→ 5 - 3 = 2.
19. f – 3 means _SUBTRACT_ 3 from a number.
→ Minus sign means subtract.
21. sum, added to, more than, increased are _ADDITION_ keywords.
→ All these words indicate addition.
22. x + 23 means a number _INCREASED_ by 23.
→ Adding 23 increases the value.
23. 10 to the second power equals one _HUNDRED_.
→ 10² = 100.
24. deduct, less and remove are _SUBTRACTION_ keywords.
→ These words imply taking away → subtraction.
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Down
1. n - 9 means _SUBTRACT_ 9 from a number.
→ Minus sign → subtract.
2. m + 2 means a number _PLUS_ 2.
→ “+” can be read as “plus”.
4. p is a variable that stands for a _NUMBER_.
→ Variables represent unknown numbers.
6. The product of 6 and 2 is _TWELVE_.
→ Product = multiplication → 6 × 2 = 12.
8. n ÷ 7 means n _DIVIDED_ by 7.
→ Division symbol ÷ means divided by.
9. b ÷ 7 means the _QUOTIENT_ of a number and 7.
→ Quotient is the result of division.
12. 2g means _TWICE_ a number.
→ “Twice” means two times → 2×g.
13. 6s means the _PRODUCT_ of a number and 6.
→ 6s = 6 × s → product.
16. times and product are _MULTIPLICATION_ keywords.
→ Both indicate multiplication.
17. x – 8 means 8 _LESS_ than a number.
→ “Less than” indicates subtraction → x - 8.
20. e + 1 means 1 _ADDED_ to a number.
→ “+” means added to.
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✔ Final Answer Key (Filled in):
Across:
1. SUM
3. TEN
5. FOURTEEN
7. TIMES
10. NINE
11. MULTIPLIED
14. EIGHT
15. DECREASED
16. MORE
18. TWO
19. SUBTRACT
21. ADDITION
22. INCREASED
23. HUNDRED
24. SUBTRACTION
Down:
1. SUBTRACT
2. PLUS
4. NUMBER
6. TWELVE
8. DIVIDED
9. QUOTIENT
12. TWICE
13. PRODUCT
16. MULTIPLICATION
17. LESS
20. ADDED
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Parent Tip: Review the logic above to help your child master the concept of translating expressions worksheet.