TFL Numeracy Yr 8 Term 2

Place Value

100

Multiply 0.0804 by 100.

80.4

200

Divide 7.2 by 1000.

0.0072

300

0.834 x ? = 84.3

100

400

Multiply 4.5 by 100, then divide the result by 10.

45

500

Divide 0.006 by 100, then multiply the result by 1000.

0.06

Rounding

100

Round 6.72 to the nearest whole number.

7

200

Round 14.386 to 1 decimal place.

14.4

300

Round 0.957 to 2 decimal place. 

0.96

400

56.954 rounded to 1 decimal place.

57.0

500

0.4 x 10 ÷ 1000

0.004

Adding & Subtarcting Integers

100

−3 + 7

4

200

12 − (−5)

17

300

−8 − 6

-14

400

−4 + 9 − 12

-7

500

15 − (−3) + (−10) − 8

0

Multiplying and Dividing Integers

100

(−4) × 6

-24

200

35 ÷ (−5)

-7

300

(−5) × (−3) ÷ 3

-5

400

(−2) × 5 ÷ (−1)

10

500

(−4) × (−3) × 2 ÷ (−6)

-4

Problem Solving

100

A rope is 3.5 m long. It is cut into 10 equal pieces. How long is each piece?

0.35m

200

The temperature drops from 6°C to −3°C. What is the change in temperature?

−9°C

300

A scuba diver descends 4 m, then rises 7 m, then descends 3 m. What is the final position relative to the start?

0m

400

A shop reduces a price by $4.50, then increases the new price by $2.30. If the original price was $25, what is the final price?

$22.80

500

A machine multiplies a number by 100, then divides the result by −10. If the final output is −40, what was the original number?

4