Question

Subtract orally
(a) 60 - 20
(b) 90 - 20
(c) 40 - 30
(d) 80 - 30
(e) 400 - 200
(f) 700 - 300
(9 900 - 400
(h) 8,000 - 3,000
(7,000 - 4,000
(i) 8,000 -- 6,000
(k) 27,000 - 17,000 =
(1) 45,000 - 4,000
(m) 99,000 - 9,000 =
(n) 16,000 - 11,000 =​

Answer 1

Answer:

40

70

10

50

200

400

500

5000

3000

2000

10000

41000

90000

5000

Answer 2

Answer:

60-20=40

90-20=70

40-30=10

80-30=50

400-200=200

700-300=400

900-400=500

8000-3000=5000

7000-4000=3000

8000-6000=2000

27000-17000=10000

45000- 4000 = 41000

99000-9000=90000

16000-11000=5000