Page 191 - Start Up Mathematics_4

When you cross the park you will come to a side lane. My house is the first house in
that lane.”
(a) Did Ismail go wrong somewhere? Can you correct him?
(b) Show where Srijata will reach if she takes the route he told her.

(c) Write the directions for going from Ismail’s house to Srijata’s house.
3. Fill these stars. Use numbers 1–9 and the rule that the numbers on each line add up
to 15.

4. Add 2 numbers below to get the number above them.

25

5 10 15 20
1 2 3 4 5

5. A square has a boundary of 12 cm. 3 cm
(a) From the corner of this square, a small
square of side 1 cm is cut off. Will the
boundary of B be less or more? Find its 3 cm 3 cm
length. A B
(b) If you cut a 1 cm square to get shape C, 3 cm

what will be the length of the boundary
of C? 3 cm

3 cm 3 cm

A C
3 cm
Square New shape

183