5. Estimate the answers to the questions below and then work out the answers properly. a) 49 × 3 = ?
Estimate =
c) 68 × 2 = ? Estimate =
×
4 9 3
×
6 8 2
b) 31 × 6 = ? Estimate =
d) 91 × 7 = ? Estimate =
×
3 1 6
×
9 1 7
6. If there are 8 classes in Sacred Heart School and 29 children in each class, how many children are in the school altogether? Estimate fi rst and then work out the answer properly in your copy.
Answer:
7. There are 9 rows of 38 children at an assembly. How many children are at the assembly altogether?
8. Solve the puzzle. Who is this inspirational leader? 26 × 8 34 × 6 78 × 5 6 × 34 56 × 8 4 × 52 68 × 3
62 × 9 3 × 68 91 × 5 82 × 7 39 × 10 45 × 7
390 = H 448 = T 208 = M 558 = G 315 = I
Recap • I can multiply a two-digit number by a one-digit number. • I know how to estimate an answer.