Unit 3

• Mathematics
• Secondary Education
• Age 12,13

83 x 0.1

1. 83
2. 8.3
3. 0.83
4. 830

233.5 x 0.1

1. 23.35
2. 233.5
3. 2.335
4. 2335

2000 x 0.1

1. 2000
2. 20
3. 200
4. 2

40 × 0.01 =

1. 40
2. 4
3. 400
4. 0.4

37 × 0.01

1. 37
2. 370
3. 3.7
4. 0.37

750 × 0.01

1. 7.5
2. 7.50
3. 75
4. 0.75

2 ÷ 0.1

1. 2
2. 20
3. 0.2
4. 200

200 ÷ 0.1=

1. 0.2
2. 20
3. 2000
4. 200

0.2 ÷ 0.1

1. 0.2
2. 2
3. 200
4. 20

4 ÷ 0.01

1. 4
2. 40
3. 400
4. 4000

400 ÷ 0.01

1. 40
2. 400
3. 40000
4. 4000

0.4 ÷ 0.01=

1. 40
2. 400
3. 40000
4. 4000

7.225÷0.01

1. 7.225
2. 72.25
3. 722.5
4. 7225

Rounding

45.982 (2 decimal places)

1. 45.99
2. 45.980
3. 45.98
4. 45.982

126.99231 (4 decimal places)

1. 126.9923
2. 126.9924
3. 126.9920
4. 126.9921

0.7785 (1 decimal place)

1. 0.7
2. 0.8
3. 0.70
4. 0.9

0.040056583 (6 decimal places)

1. 0.04005658
2. 0.040056
3. 0.0400565
4. 0.040057

782.02972 (3 decimal places)

1. 782.020
2. 782.039
3. 782.030
4. 782.029

3.9975 (2 decimal places)

1. 3.99
2. 4.00
3. 3.10
4. 4.90