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
- 1.21 × 15 =
- 2.61 × 15 =
- 3.45 × 15 =
- 4.42 × 15 =
- 5.56 × 15 =
- 6.50 × 15 =
- 7.41 × 15 =
- 8.29 × 15 =
- 9.64 × 15 =
- 10.5 × 15 =
- 11.52 × 15 =
- 12.17 × 15 =
- 13.7 × 15 =
- 14.63 × 15 =
- 15.12 × 15 =
- 16.31 × 15 =
- 17.15 × 15 =
- 18.41 × 15 =
- 19.34 × 15 =
- 20.11 × 15 =
- 21.26 × 15 =
- 22.61 × 15 =
- 23.56 × 15 =
- 24.8 × 15 =
- 25.31 × 15 =
- 26.27 × 15 =
- 27.11 × 15 =
- 28.56 × 15 =
- 29.29 × 15 =
- 30.64 × 15 =
- 31.25 × 15 =
- 32.55 × 15 =
- 33.59 × 15 =
- 34.49 × 15 =
- 35.54 × 15 =
- 36.51 × 15 =
- 37.24 × 15 =
- 38.12 × 15 =
- 39.42 × 15 =
- 40.27 × 15 =
Answer key
- 315
- 915
- 675
- 630
- 840
- 750
- 615
- 435
- 960
- 75
- 780
- 255
- 105
- 945
- 180
- 465
- 225
- 615
- 510
- 165
- 390
- 915
- 840
- 120
- 465
- 405
- 165
- 840
- 435
- 960
- 375
- 825
- 885
- 735
- 810
- 765
- 360
- 180
- 630
- 405
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths