Number Summit Worksheet Yomer 11/2026
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NUMBER SUMMIT • ADVANCED
Stage 1: Base Camp Rigor • Complex Regrouping & Multi-Step Problems
Name:
Date:
Part A
Advanced Trail Computations
Regroup across zeros and near-century sums
49
100
− 63
37
91
− 48
68
100
− 47
Part B
Trail Balances • Multi-Step & Balanced Equations
7. \( 48 + \) \( = 100 - 15 \) Balance
8. \( 92 - \) \( = 35 + 19 \) Balance
9. \( 100 - (28 + 36) = \) Multi-Step
10. \( 39 + 45 = 100 - \) Make Century
Part C
Two-Step Base Camp Challenges
- Ranger Maya packed 48 energy bars and 35 dried fruit packs. During the morning ascent, the hikers ate 29 items. How many snack items remain in the pack?
Show Your Work (2 Steps):
Answer with Label:
- The summit trail is exactly 100 meters long. Leo climbed 38 meters before his rest stop and 27 meters after resting. How many more meters must Leo climb to finish?
Show Your Work (2 Steps):
Answer with Label:
Page 1 of 3 • Stage 1: Base Camp Rigor Turn over for Stage 2 (Up to 1,000) ➜
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NUMBER SUMMIT • ADVANCED
Stage 2: High Summit Mastery • Regrouping Across Zeros & Multi-Step Logic
Name:
Date:
Part D
Summit Master Computations
Double regrouping & subtracting across zeros
478
800
− 364
569
704
− 387
498
1000
− 458
Part E
Trail Detective • Rigorous Error Analysis
Hiker's Work:
8 0 4
− 3 5 9
4 5 5
19. The hiker borrowed 1 hundred to make 10 tens, but when borrowing 1 ten for the ones, they forgot to change the 10 tens to 9 tens.
Identify step missed:
Correct Answer:
Part F
Two-Step Summit Expedition Challenges
- Mount Timber trail is 920 meters total. Crew Alpha hiked 384 meters up from base camp. Crew Beta hiked 276 meters down from the summit toward them. How many meters of trail remain between the two crews?
Show Your Work (2 Steps):
Answer with Label:
- The camp water tank started with 850 liters. The expedition used 275 liters on Day 1 and 348 liters on Day 2. They then collected 185 liters of rainwater. How many liters are in the tank now?
Show Your Work (Multi-Step):
Answer with Label:
Page 2 of 3 • Stage 2: High Summit Mastery Turn over for Stage 3: Pinnacle Quest ➜
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NUMBER SUMMIT • ADVANCED
Stage 3: Pinnacle Quest • Estimation, Pack Logistics & Puzzle Mastery
Name:
Date:
Part G
Altimeter Estimates & Reasonableness
Round to nearest 100 or 10 first, then compute exact sum/difference
22. \( 684 + 219 \)
Round to 100s:
Exact Total:
23. \( 802 - 376 \)
Round to 10s:
Exact Difference:
24. \( 493 + 388 \)
Round to 10s:
Exact Total:
Part H
Expedition Pack Weight Logistics
Sleeping Gear 345 g
Cook Stove Kit 278 g
Emergency Beacon 189 g
Maximum Limit 1,000 g
25. Find the total combined weight of the 3 gear items.
Show Work:
Total (g):
26. How many grams under the 1,000 g limit is the pack?
Show Work:
Remaining (g):
Part I
Summit Cipher • Missing Digit Puzzles
27. Addition
6 _ 5
9 2 1
Fill in the boxes:
Top Box (Tens):
Bottom Box (Ones):
28. Subtraction
8 _ 2
− _ 4 7
3 8 5
Fill in the boxes:
Top Box (Tens):
Bottom Box (Hundreds):
Part J
The Grand Alpine Traverse Challenge
- The entire Alpine Traverse spans 950 meters. On Day 1, the crew advanced 364 meters. On Day 2, a blizzard forced them to retreat 85 meters. On Day 3, clear skies allowed them to push forward 415 meters.
Show Your Work (Multi-Step Calculations):
Net Position Reached:
Meters Remaining to Traverse:
Page 3 of 3 • Stage 3: Pinnacle Quest Expedition Complete! Pinnacle Conquered! ★
