Adding length of same units.

Addition of lenghts given in mm and cm .

Addition of lenghts in cm and m , m and km

Concept of carryover .

Exercise

1) Add following unit of length

a) 50cm + 10cm .

b) 8 mm + 1 mm .

c) 25 cm + 30 cm .

d) 80 m + 25 m .

e) 10 km + 5 km .



Score:

2) Add the following length .

a) 10 cm 8 mm + 1 cm 9 mm
11 cm 17 mm
11 cm 7 mm
12 cm 7 mm

b) 5 m 50 cm + 5 m 5 cm
10 m 55 cm
11 m 00 cm
11 m 5 cm

c) 70 km 50 m + 20 km 120 m .
90 km 720 m
90 km 170 cm
91 km 70 m

d) 25 m 80cm + 10 m 80cm .
35 m 160 cm
36 m 60 cm
35 m 80 cm

e) 10 cm 5 mm + 29 cm 4 mm
39 cm 9 mm
39 mm 9 cm
39cm


Score:

3) Add the following length .

a) 10 cm 8 mm + 90 cm 9 mm
100 cm 17 mm
100 cm 7 mm
1 m 1 cm 7 mm

b) 5 m 50 cm + 5 m 80 cm
10 m 30 cm
10 m 130 cm
11 m 30 cm

c) 70 km 500 m + 20 km 600 m .
90 km 100 m
91 km 100 m
90 km 1100 m

d) 25 m 80cm + 10 cm 8 mm .
35 m 88 cm
25 m 90 cm 8 mm
25 m 90cm 88 mm

e) 10 m 5 mm + 29 cm 5 mm
10 m 30 cm
10 m 29 cm 10 mm
10 m 30 cm 5 mm


Score:

4) Add the following length

a) 30 m 20 cm 2 mm + 20 m 2cm 3 mm
30 m 20 cm 5 mm
50 m 40 cm 5 mm
50 m 22 cm 5 mm

b) 10 km 800 m 20 cm + 2 km 200 m 30 cm
12 km 50 cm
13 km 50 cm
12 km 1000 m 50 cm

c) 90 m 9 mm + 9 cm 9 mm
90 m 9 cm 18 mm
99 m 18 cm
90 m 10 cm 8 mm

d) 25 m 80 cm + 25 cm 8 mm
26 m 5 cm 8 mm
25 m 5 cm 8 mm
25 mm 105 cm 8 mm

e) 800 m 8 cm 8 mm + 200 m 51 cm 2 mm
1 km 30 cm
1 km 1 m 32 cm
1 km 60 cm


Score: