The Spy Academy Codebreakers
A Rogue Agent has infiltrated the Spy Academy and stolen the Master Decryption Key! The Chief Tech Director was locked inside the laser vault. We must analyze the evidence left behind to deduce which Academy member turned rogue before they escape on the stealth jet.
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | Signature Gadget | Hacking Tool | Watch Wrist | Disguise Wig | Snack Distraction |
|---|---|---|---|---|---|
| Tony Stark | Grappling Hook Belt | Keycard cloner | Left wrist watch | Toxic green wig | Spicy pepper |
| Inspector Gadget | Sonic Screwdriver | Laser decrypter | Left wrist watch | Sunset orange wig | Sour lemon |
| Selina Kyle | Smoke Bomb Pen | Data bypasser | Right wrist watch | Neon blue wig | Sticky honey |
| Perry Platypus | Grappling Hook Belt | Mainframe override | Right wrist watch | Sunset orange wig | Sour lemon |
| Indiana Jones | Laser Ring | Mainframe override | Right wrist watch | Neon blue wig | Sour lemon |
| Spy Kid Juni | Sonic Screwdriver | Keycard cloner | Left wrist watch | Neon blue wig | Sour lemon |
| Harriet Spy | Hover Boots | Data bypasser | Right wrist watch | Toxic green wig | Sour lemon |
| Frank Hardy | Grappling Hook Belt | Mainframe override | Right wrist watch | Sunset orange wig | Sticky honey |
| James Bond | Laser Ring | Mainframe override | Left wrist watch | Sunset orange wig | Sour lemon |
| Carmen Sandiego | Grappling Hook Belt | Laser decrypter | Right wrist watch | Neon blue wig | Sour lemon |
| Austin Powers | Grappling Hook Belt | Laser decrypter | Right wrist watch | Sunset orange wig | Sticky honey |
| Natasha Romanoff | Sonic Screwdriver | Laser decrypter | Right wrist watch | Neon blue wig | Sticky honey |
| Bruce Wayne | Sonic Screwdriver | Signal jammer | Right wrist watch | Neon blue wig | Sour lemon |
| Lara Croft | Sonic Screwdriver | Keycard cloner | Right wrist watch | Neon blue wig | Sour lemon |
| Cody Banks | Smoke Bomb Pen | Signal jammer | Right wrist watch | Neon blue wig | Sour lemon |
| Joe Hardy | Laser Ring | Signal jammer | Right wrist watch | Sunset orange wig | Spicy pepper |
| Spy Kid Carmen | Hover Boots | Signal jammer | Right wrist watch | Toxic green wig | Sour lemon |
| Kim Possible | Sonic Screwdriver | Mainframe override | Left wrist watch | Neon blue wig | Sticky honey |
| Nancy Drew | Laser Ring | Signal jammer | Left wrist watch | Sunset orange wig | Sticky honey |
| Sherlock Holmes | Hover Boots | Laser decrypter | Right wrist watch | Toxic green wig | Spicy pepper |
| John Watson | Laser Ring | Laser decrypter | Right wrist watch | Sunset orange wig | Sour lemon |
Rounding
A motion radar picked up the fleeing suspect. The radar screen only displays numbers rounded to the nearest ten, so we have to estimate the target's distance to narrow down the sector.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Addition
We searched the supply lockers and counted all the remaining spy gear. Adding these extra items together will reveal the total inventory count.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Subtraction
The vault code requires finding the difference between two security keycodes. Let us subtract the backup code from the primary alarm code.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Multiplication facts (1-12)
The laser grid is arranged in a perfect grid of rows and columns. Multiplying the lasers in each row will help us calculate the safe pathway through.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Division facts (1-12) — the last clue
The agents must split the recovery tools equally among their teams. Dividing the tools fairly will give us the final clue to identify the rogue.
First solve each problem. Then find each answer in the list below and cross that sentence out. One sentence will be left — that's exactly what the villain did!
Name the culprit
Choose the one suspect left standing.
Answer Key — The Spy Academy Codebreakers
- Clue 1 (Rounding): "THE SNEAK DOES NOT USE A LASER DECRYPTER"Round 109 to the nearest ten = 110 (T) · Round 934 to the nearest hundred = 900 (U) · Round 4,259 to the nearest hundred = 4300 (L) · Round 5,093 to the nearest thousand = 5000 (K) · Round 8,682 to the nearest thousand = 9000 (E) · Round 87 to the nearest ten = 90 (H) · Round 26 to the nearest ten = 30 (R) · Round 1,677 to the nearest hundred = 1700 (P) · Round 171 to the nearest ten = 170 (O) · Round 373 to the nearest ten = 370 (N) · Round 2,287 to the nearest hundred = 2300 (S) · Round 1,057 to the nearest hundred = 1100 (A) · Round 132 to the nearest ten = 130 (C) · Round 684 to the nearest hundred = 700 (D) · Round 227 to the nearest ten = 230 (Y)
- Clue 2 (Addition): "THE TARGET WEARS A RIGHT WRIST WATCH"3276 + 2366 = 5642 (T) · 3586 + 3910 = 7496 (S) · 919 + 1877 = 2796 (W) · 1777 + 3727 = 5504 (E) · 2573 + 3746 = 6319 (C) · 3661 + 2007 = 5668 (A) · 1682 + 2810 = 4492 (H) · 5271 + 2700 = 7971 (R) · 980 + 1049 = 2029 (G) · 1578 + 2566 = 4144 (I)
- Clue 3 (Subtraction): "THE ROGUE AGENT LOVES SOUR LEMON"8079 - 3864 = 4215 (T) · 6124 - 4369 = 1755 (R) · 4761 - 2272 = 2489 (L) · 5305 - 3411 = 1894 (E) · 10106 - 2752 = 7354 (G) · 6101 - 3687 = 2414 (O) · 8854 - 4084 = 4770 (V) · 3086 - 852 = 2234 (U) · 5357 - 2438 = 2919 (H) · 10537 - 4027 = 6510 (M) · 6683 - 3270 = 3413 (S) · 8856 - 2806 = 6050 (A) · 3648 - 2085 = 1563 (N)
- Clue 4 (Multiplication facts (1-12)): "NEON BLUE WIG FIBERS WERE AT THE SCENE"10 × 1 = 10 (N) · 12 × 12 = 144 (A) · 8 × 5 = 40 (L) · 2 × 1 = 2 (G) · 9 × 9 = 81 (F) · 6 × 9 = 54 (I) · 11 × 11 = 121 (S) · 12 × 7 = 84 (R) · 3 × 9 = 27 (C) · 2 × 8 = 16 (E) · 1 × 1 = 1 (T) · 7 × 7 = 49 (U) · 11 × 1 = 11 (W) · 3 × 11 = 33 (O) · 5 × 5 = 25 (H) · 2 × 6 = 12 (B)
- Clue 5 (Division facts (1-12)): surviving statement (box 4) → Bruce Wayne120 ÷ 10 = 12 · 70 ÷ 7 = 10 · 7 ÷ 7 = 1 · 11 ÷ 1 = 11 · 10 ÷ 2 = 5 · 90 ÷ 10 = 9 · 12 ÷ 4 = 3 · 84 ÷ 12 = 7 · 8 ÷ 1 = 8 · 20 ÷ 10 = 2 · 66 ÷ 11 = 6
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Rounding, Addition, Subtraction, Multiplication, Division
- Reading level
- grades 5-6
- Theme
- The Spy Academy Codebreakers — set in The Spy Academy Command Center
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects