Q2 Simplify as per the instructions given:
a) The length of a rectangular park is 20 m, and its width is 15 m. Find its perimete
b) Add: 25 lg 550 g + 29 kg 550 g
Subtract: 40 km 255 m - 17 km 900 m
a) Length of a side of square is 15cm. Find Area
el Add: 4 hours 30 min + 2 hours 45 min
f) Subtract:5 hour 30 min - 2 hour 45 min
g) Read the decimal fraction and write down the place value of each digit in 48.84
h) Convert the following fractions as decimal fractions.
1) Fourteen and three quarters ii) Twenty-eight and a half
Answers
Step-by-step explanation:
A) perimeter of a rectangle= 2(l+b)
= 2(20+15) metres
= 2(35) metres
= 70 metres
B) 25kg 550g + 29 kg 550g
=(25+29)kg (550+550)g
= 54kg 1100g
= 55kg 100g
C) 40km 255m- 17km 900m
= (40-17)km (255-900)m
= 23km (-645)m
= 22km 355metres
D) Area of a square= side× side
= (15×15) cm²
= 255 cm²
E) 4 hrs 30 min + 2 hrs 45 min
= 6 hrs 75 min = 7 hrs 15 minutes
F) 5 hrs 30 min - 2 hrs 45 min
= 3 hrs -15min
= 2 hrs 45minutes
G) 48.84
4= 40 = tens
8 = 8 = ones
.
8 = 8 tenths
4 = 4 hundred