Page 77 - Start Up Mathematics_3

3. Look at the pattern and fill in the blanks.

1 × 8 = 8 (10 – 2) 6 × 8 = _____ (_____ – _____ )

2 × 8 = 16 (20 – 4) 7 × 8 = _____ (_____ – _____ )

3 × 8 = 24 (30 – 6) 8 × 8 = _____ (_____ – _____ )

4 × 8 = _____ (40 – _____ ) 9 × 8 = _____ (_____ – _____ )
5 × 8 = 40 (_____ – _____ ) 10 × 8 = 80 (_____ – _____ )

4. Multiply and write the product.

(a) 69 × 16 (b) 29 × 27 (c) 46 × 32 (d) 93 × 17
5. Multiply using shortcut method.

(a) 61 × 11 (b) 77 × 8 (c) 85 × 11 (d) 29 × 6

6. A chocolate factory makes 35 chocolates each day. How many chocolates will
it make in 92 days?

7. A game show has 9 categories. There are 72 points in each category. How many
points are there in the game show?

8. Frame 2 word problems for each of the following.
(a) 69 × 5 = ? (b) 24 × 12 = ? (c) 159 × 8 = ? (d) 195 × 6 = ?

9. Shreya bought 7 packets of marbles each of which contained 44 marbles. How
many marbles are there in all?

10. Fill in the empty boxes recalling the tables of 12 and 14.

10 0 12 10 0 14
1 1
9 9
2 2
8 12 × 8 14 ×
3 3
7 7
4 4
6 5 6 5

11. A family went for vacation to Europe. They stayed in a hotel which had 8 floors.
If there were 125 people on each floor, how many people were there in the
hotel?

69