(i) Make patterns with numbers and letters.
(a) ABC, DEF, GHI, _____, _____, _____
(b) 28Z, 27Y, 26X, _____, _____, _____
(c) 864, 764, 664, _____, _____, _____
(d) 9, 109, 209, _____, _____, _____
(e) 2A3, 3B3, 4C3, _____, _____, _____
(f) 1, 22, 333, _____, _____, _____
Ans:
(a) JKL, MNO, PQR
(b) 25W, 24V, 23U
(c) 564, 464, 364
(d) 309, 409, 509
(e) 5D3, 6E3, 7F3
(f) 4444, 55555, 666666
(ii) Make a pattern with any numbers:
111, 222, 333, _____, _____, _____
Ans: 444, 555, 666
(iii) Make a pattern without numbers:
ZYX, WVU, TSR, _____, _____, _____
Ans: QPO, NML, KJI
(iv) Complete the pattern:
80, 70, 60, _____, _____, _____
Ans: 50, 40, 30
(v) Complete the pattern:
50, _____, _____, 65, _____, 75, 80, _____
Ans: 50, 55, 60, 65, 70, 75, 80, 85
(i) Teenu wants to write to his friend ‘Good Morning’. What will he write by using the rule?
Ans: 7 15 15 4 13 15 18 14 9 14 7
(ii) If we change the rule and write 1 in place of B, 3 in place of D and so on, then how will we write ‘Let us dance’?
Ans: 11 4 19 20 18 3 26 13 2 4
(iii) The secret message of Kahuli is XFBSF GSJFOET. What is this secret message?
Ans: We are friends
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