10.00584 move decimal 3 places left
223 23² = 529
36 6³ = 216
4£30.34 [2] 820 × 0.037
515.74 [2] 5.83 × 2.7 = 15.741
62,400,000
76.7 × 10⁻⁵
860 [2] LCM(15,20,12)
94850 4800 + half of 100
10−125
114(3x − 2)
124x + 14 [2] 6x+12−2x+2
13x = 5 [2] 6x−2=4x+8; 2x=10
14h = 10 [2] 45=½×9×h; h=10
15x > 4 [2] 4x > 16
1674 3(25)−1=74
1726 and 28 [2] n+(n+2)=54; n=26
18gradient = 2, y-intercept = −3 [1+1]
19x³ index law: subtract powers
2034 [2] 3(9)−2(−3)+1=27+6+1
216/7 [2] 4/7 × 3/2 = 12/14 = 6/7
2217/6 2×6+5=17
23£29.25 [2] 45 × 0.65
24£69 60 × 1.15
25£100 [2] 112 ÷ 1.12
260.583 7÷12=0.5833…
276 [2] 10/3 × 9/5 = 90/15 = 6
285/8 [2] 5/8 = 0.625 = 62.5% > 62%
2953.4 cm [2] 2π × 8.5
3077.0 cm² [2] ½π × 7² = 76.97…
31502.7 cm³ [2] π × 4² × 10
32188.5 cm² [2] 2πr²+2πrh = 2π(9)+2π(21)
33x = 12 [2] 3x+10=5x−14; 24=2x
341.125 km [2] 4.5×25000=112500 cm=1.125 km
35y = 35 [2] k=5; y=5×7
369 hours [2] total work=18 man-hrs; 18÷2=9
37x = 10.2 [2] sum=85.2; 8+11+14+22+20=75; x=10.2
382/5 [2] P(girl|dog)=10/25=2/5