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
- 1.46 × 15 =
- 2.23 × 15 =
- 3.30 × 15 =
- 4.6 × 15 =
- 5.9 × 15 =
- 6.26 × 15 =
- 7.24 × 15 =
- 8.59 × 15 =
- 9.50 × 15 =
- 10.16 × 15 =
- 11.55 × 15 =
- 12.59 × 15 =
- 13.43 × 15 =
- 14.27 × 15 =
- 15.5 × 15 =
- 16.12 × 15 =
- 17.61 × 15 =
- 18.6 × 15 =
- 19.23 × 15 =
- 20.10 × 15 =
- 21.37 × 15 =
- 22.16 × 15 =
- 23.40 × 15 =
- 24.43 × 15 =
- 25.18 × 15 =
- 26.35 × 15 =
- 27.10 × 15 =
- 28.19 × 15 =
- 29.47 × 15 =
- 30.55 × 15 =
- 31.28 × 15 =
- 32.34 × 15 =
- 33.17 × 15 =
- 34.53 × 15 =
- 35.58 × 15 =
- 36.15 × 15 =
- 37.57 × 15 =
- 38.31 × 15 =
- 39.5 × 15 =
- 40.40 × 15 =
Answer key
- 690
- 345
- 450
- 90
- 135
- 390
- 360
- 885
- 750
- 240
- 825
- 885
- 645
- 405
- 75
- 180
- 915
- 90
- 345
- 150
- 555
- 240
- 600
- 645
- 270
- 525
- 150
- 285
- 705
- 825
- 420
- 510
- 255
- 795
- 870
- 225
- 855
- 465
- 75
- 600
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths