@indigomentalclubuk: We’ve noticed that you lot really enjoy calculations, so we thought—why not share more of them here? From time to time, we’ll be throwing in some fun challenges—some easy, some tricky! So, here’s one to start. Have a go and drop your answer in the comments! ⬇️ And if you want us to try a particular challenge next time, let us know! #indigomentalclubuk #abacusmaths #abacuskids #mentalmaths #mathschallenge #abacusforkids #foryou #fyp #Indigoabacus
I tried it without learning abacus and my answer was 6-
2025-07-18 16:45:23
17
Shreeya.##✨ :
5
2026-01-17 12:38:56
10
M4RY_👀 :
2+2 is 4+5 is 9-8 is 1-1 is 0+9 is 9-2 is 7+1 is 8+1 is 9-4 is 5 so the answer is 5
2025-07-27 14:09:27
22
MARIA (SEEING SKZ DOMNIATE EX) :
I swear it’s 5
2025-10-27 20:21:54
5
just_an_emo18 (leah) :
5
2025-03-12 19:32:10
11
Zvetx :
89+434+24-7344
2026-05-26 23:45:50
0
¥zane¥ :
The answer is 1
2026-05-04 17:14:20
2
stranger things 🩸 :
6
2026-05-14 19:27:54
1
Antonio :
5
2026-05-25 02:57:39
1
Jedon🤷♀️ :
5
2025-09-08 08:55:05
11
notification :
5
2026-06-03 13:54:58
1
? :
4 Không biết đúng không nữa😁
2026-02-08 07:33:50
1
Mitch_Mae :
5
2026-05-09 13:20:22
1
enhypen_is 7 :
MY CALCULATIONS 134=raised to 15 x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) (x² + 14x + 49) if V = pi / 12 (x4 - 19x2 - 14x + 32) dx19 V = x [-x-12 y = x + 79 - x² = x + 7 So x = 1 and x <562) = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) - (x² + 14x + 49) dx V = pi / 12 (x4 - 19x2 - 14x + 32) dx 19 V = x [-x-12x3-7 y = x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 84) - (x² + 14x + 49) dx V = pi / 12 (x4 - 19x2 - 14x + 32 9 - x² y = x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) - (x² + 14x + 49) dx V = pi / 12 (X4 - 19x2 - 14x + 32) dx19 V = x [-x-12 y = x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) - (x² + 14x + 49) dx V = pi / 12 (x4 - 19x2 - 14x + 32) dx 19 V = x [-x-12x3-7 y = x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) - (x² + 14x + 49) dx V = pi / 12 (x4 - 19x2 - 14x + 32) as you know 9 - x² produces y = x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) - (x² + 14x + 49) dx V = pi / 12 (x4 - 19x2 - 14x + 32) dx19 V = x [-x-12 y = x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) - (x² + 14x + 49) dx V = pi / 12 (x4 - 19x2 - 14x + 32) dx 19 V = x [-x-12x3-7 y = x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) - (x² + 14x + 49) dx V = pi / 12 (x4 - 19x2 - 14x + y = x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) - (x² + 14x + 49) dx V = pi / 12 (x4 - 19x2 - 14X + 32) dx19 V = x [-x-12 y = x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7)= IS 134=raised to 15 x + 79 - x² = x + 7 So x = 1 and x = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4-18x² + 81) - (x² + 14x + 49) if V = pi / 12 (x4 - 19x2 - 14x + 32) dx19 V = x [-x-12 y = x + 79 - x² = x + 7 So x = 1 and x <562) = -2 V = π112 (9-x2) ² - (x + 7) 2dx V = π12 (x4
answer is: 1
2026-05-20 20:23:57
2
~𝒛𝒆𝒊𝒏𝒂~ :
i'm using abacus 🧮 and i know what is the answer2+2+5-8-1+9-2+1+1-4=6
2025-09-23 15:14:57
3
koda👍 :
5?
2026-02-11 08:31:17
0
🎀 :
5
2026-03-18 18:25:01
1
-h.hai- :
it's 5 I even use an abacus 🧮
2025-12-01 13:37:37
4
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