
星際特攻隊:分數矩陣的逆襲
Presentation
•
Mathematics
•
7th Grade
•
Hard
Shelly Tsai
FREE Resource
5 Slides • 14 Questions
1
By Shelly Tsai
2
請學員在 3 秒內回答下列「是非題」,猶豫即視為受傷。
3
Multiple Choice
(因倍數偵測) 兩個質數相加,結果一定是合數?
是
否
4
Multiple Choice
(負數雷達) (−231) 的相反數是 213 ?
是
否
5
Multiple Choice
(指數防禦) (−3)4 = −34 ?
是
否
6
7
Fill in the Blanks
👾 Boss 1:質數幽靈 (針對 2-1, 2-2 因數與倍數)
挑戰書:
已知 a, b, c 為三個相異的正整數,且 a x b x c = 1001。
若 a < b < c,請問 c - a = ?
Type answer...
8
Fill in the Blanks
👾 Boss 2:裂項巨獸 (針對 2-3 分數四則運算)
挑戰書: 請計算下列算式的值(不要通分,那樣你會被巨獸踩扁):
2×31+3×41+4×51+⋅⋅⋅+19×201= ?
Type answer...
9
Fill in the Blanks
🦖 變異巨獸 I:斷層震波 (The Gap Trap)
難度等級: ★★★★☆
適用時機: 秒殺第一題,但只是死背公式「頭減尾」,沒有考慮係數時。
【挑戰題目】
1×41+4×71+7×101+⋅⋅⋅+28×311=
Type answer...
10
Fill in the Blanks
🦖 變異巨獸 II:光學迷彩 (The Camouflage)
難度等級: ★★★★★
適用時機: 考驗你對數字的敏感度,因為分母不再直接寫成乘積形式。
【挑戰題目】
151+351+631+991+1431=
Type answer...
11
Fill in the Blanks
🐉 隱藏 Boss:三頭龍 (The Cerberus)
難度等級: S-Class (超越國一程度,純資優挑戰)
適用時機: 如果你真的很強,強到覺得無聊~
【挑戰題目】
1×2×31+2×3×41+3×4×51+⋅⋅⋅8×9×101=
Type answer...
12
Fill in the Blanks
👾 Boss 3:指數魔王 (針對 2-4 指數律)
挑戰書:
若 A = 260, B = 348, C = 524,請比較 A, B, C 的大小關係。
?
Type answer...
13
Multiple Choice
指數律防禦塔 (Defense Turrets)
🚧 防禦塔 I:複製人大軍 (The Clone Army)
題目: 請計算 310 + 310 + 310 之值等於多少?
330
910
311
930
14
Fill in the Blanks
🚧 防禦塔 II:次方的次元 (Dimension Gap)
題目: 比較下列 A, B 兩數的大小: A = (23)4 , B = 234
Type answer...
15
Fill in the Blanks
🚧 防禦塔 III:零度領域 (Zero Gravity)
題目: 若方程式 (x-5)0 = 1 成立,請求出 x 的範圍或數值。
Type answer...
16
請擔任「老師」批改這個典型的錯誤計算過程。
17
Multiple Choice
題目: 計算 12÷(−4)×31÷2
錯誤解法 (病毒):
步驟1 12÷[(−4)×31]÷2
步驟2 = 12÷(−34)÷2
步驟3 = 12×(−43)×21
步驟4 = −29
步驟1
步驟2
步驟3
步驟4
18
19
Fill in the Blanks
課後作業 (彩蛋): 只有一題:「請找出一組 a, b,使得 (a, b) x [a, b] = 240,且 a, b 互質。」
(訓練 a x b = 240 且互質的組合拆解)。
Type answer...
By Shelly Tsai
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