10F Spring Term 1 Review

Rounding

100

Round 319 to the nearest 10

320

200

Round 463.2 to the nearest integer

463

300

Round 36.86 to 3 significant figures

36.9

400

Round 0.03462 to 2 significant figures

0.035

500

What are the upper and lower bounds of 40 rounded to the nearest 10

LB = 35, UB = 45

Indices, Factors and multiples

100

Simplify  4^7 xx 4^3 

4^10

200

Simplify 

(5^3)^2

5^6

300

Simplify  (3^7xx3^10)/3^4 

3^13

400

Simplify  c^-3 

1/c^3

500

Find the HCF of 72 and 84

12

Standard form

100

Write 46000 in standard form

4.6x10^4

200

Write 0.00341 in standard form

3.41x10^-3

300

Calculate  3xx10^4+6.2xx10^3 , giving your answer in standard form

3.62x10^4

400

Calculate  4xx10^134xx2xx10^37 , giving your answer in standard form

8x10^171

500

Calculate  6.2xx10^203div2xx10^16 

3.1xx10^187

Percentages

100

Calculate 13% of 240

31.2

200

Calculate 7% of 52

3.64

300

Increase 26 by 15%

29.9

400

Decrease 58 by 38%

35.96

500

Calculate the amount of interest when £600 is put into an account with 7% interest for 4 years

£786.48

Pot luck!

100

Give me 3 factors of 12

1,2,3,4,6,12

200

Round 36341 to 3 significant figures

36300

300

Calculate the prime factor decomposition of 80

2x2x2x2x5

400

Write using indices:  1/c^3 

c^-3

500

What are the upper and lower bounds when 600 has been rounded to the nearest 100

550, 650