Page 18 - CT&AI_CLasa_7_Part_1

arithmetic

2 expressions

computational thinking quest

Tick ( ) the correct option.

1. A machine follows this rule: 5. Which pair has equal values?
If number is even → divide by 2 (Analytical Thinking)

If number is odd → multiply by 3 and add 1 (a) 34 − (9 + 12) and 34 − 9 + 12
Starting from 7, what is the result after 3
steps? (Algorithmic Thinking) (c) 16 − (8 − 3) and (16 − 8) − 3

(a) 34 (b) 11 (c) 27 − (18 + 4) and 27 − 18 + 4
(d) 34 − (9 – 12) and 34 − 9 + 12
(c) 52 (d) 26
6. A shopkeeper packs 4 boxes with 12 items
2. If A = 1, B = 3, C = 6, D = 10, E = 15, then what is each. Then remove 10 items. Later, he doubles
H? (Pattern Recognition) the remaining items. How many items are
there finally? (Algorithmic Thinking)
(a) 28 (b) 36
(a) 76 (b) 80
(c) 45 (d) 55
(c) 72 (d) 84
3. In the expression, 9 @ 6 + 12 < 5 × 3 × 2
7. In the following expression, each operator is
Which operator cannot replace ‘@’ so that the interchanged with the adjacent term on its left,
condition remains true? (Logical Thinking) resulting in a new expression. Find the value
of: (New Expression − Original Expression)
(a) + (b) – Left 277 + 196 – 329 right (Algorithmic Thinking)

(c) × (d) ÷ (a) 156 (b) 266
4. Which expression is equal to 28 + 35 – 10? (c) 196 (d) 217

(a) 26 + (28 – 1) 8. A gift shop packs 8 keychains, 6 badges, and 4
stickers in one souvenir pack. If 750 packs are
(b) (28 + 30) – 6 sold during a festival, how many total items
were sold? (Algorithmic Thinking)
(c) 28 + 35 + 10
(a) 9,500 (b) 12,000

(d) 28 + (33 – 10) (c) 10,500 (d) 13,500

16 Computational Thinking-7 (Mathematics)