Multiply by 15 Worksheet
The fast method (Ten and half again): Multiply by 10: 46 → 460. Halve that answer: half of 460 is 230. Add the two: 460 + 230 = 690.
NameDateTime takenScore ___ / 40
- 1.52 × 15 =
- 2.15 × 15 =
- 3.54 × 15 =
- 4.35 × 15 =
- 5.21 × 15 =
- 6.40 × 15 =
- 7.56 × 15 =
- 8.48 × 15 =
- 9.52 × 15 =
- 10.50 × 15 =
- 11.21 × 15 =
- 12.13 × 15 =
- 13.27 × 15 =
- 14.7 × 15 =
- 15.30 × 15 =
- 16.12 × 15 =
- 17.63 × 15 =
- 18.19 × 15 =
- 19.15 × 15 =
- 20.63 × 15 =
- 21.26 × 15 =
- 22.34 × 15 =
- 23.19 × 15 =
- 24.47 × 15 =
- 25.20 × 15 =
- 26.38 × 15 =
- 27.10 × 15 =
- 28.57 × 15 =
- 29.9 × 15 =
- 30.55 × 15 =
- 31.17 × 15 =
- 32.25 × 15 =
- 33.24 × 15 =
- 34.19 × 15 =
- 35.5 × 15 =
- 36.31 × 15 =
- 37.64 × 15 =
- 38.40 × 15 =
- 39.17 × 15 =
- 40.19 × 15 =
Answer key
- 780
- 225
- 810
- 525
- 315
- 600
- 840
- 720
- 780
- 750
- 315
- 195
- 405
- 105
- 450
- 180
- 945
- 285
- 225
- 945
- 390
- 510
- 285
- 705
- 300
- 570
- 150
- 855
- 135
- 825
- 255
- 375
- 360
- 285
- 75
- 465
- 960
- 600
- 255
- 285
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths