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Count back by 50s

Year 3 maths · Fieldbook Learning

Name ______________________ Date __________

Each number is 50 less.

  1. 507, 457, 407, 357, … Write the next three numbers and the rule.
  2. 497, 447, 397, 347, … Write the next three numbers and the rule.
  3. 431, 381, 331, 281, … Write the next three numbers and the rule.
  4. 558, 508, 458, 408, … Write the next three numbers and the rule.
  5. 675, 625, 575, 525, … Write the next three numbers and the rule.
  6. 517, 467, 417, 367, … Write the next three numbers and the rule.
  7. 487, 437, 387, 337, … Write the next three numbers and the rule.
  8. 612, 562, 512, 462, … Write the next three numbers and the rule.
  9. 782, 732, 682, 632, … Write the next three numbers and the rule.
  10. 954, 904, 854, 804, … Write the next three numbers and the rule.
  11. 485, 435, 385, 335, … Write the next three numbers and the rule.
  12. 972, 922, 872, 822, … Write the next three numbers and the rule.
  13. 716, 666, 616, … Write the next three numbers and the rule.
  14. 585, 535, 485, … Write the next three numbers and the rule.
  15. 901, 851, 801, … Write the next three numbers and the rule.
  16. 506, 456, 406, … Write the next three numbers and the rule.
  17. 786, 736, … Write the next three numbers and the rule.
  18. 971, 921, … Write the next three numbers and the rule.
  19. 640, 590, … Write the next three numbers and the rule.
  20. 780, 730, … Write the next three numbers and the rule.
More free practice: fieldbooklearning.com/au/practice/year-3/count-back-by-50s/

Answer key: Count back by 50s

  1. 307, 257, 207, Start at 507; subtract 50 each time
  2. 297, 247, 197, Start at 497; subtract 50 each time
  3. 231, 181, 131, Start at 431; subtract 50 each time
  4. 358, 308, 258, Start at 558; subtract 50 each time
  5. 475, 425, 375, Start at 675; subtract 50 each time
  6. 317, 267, 217, Start at 517; subtract 50 each time
  7. 287, 237, 187, Start at 487; subtract 50 each time
  8. 412, 362, 312, Start at 612; subtract 50 each time
  9. 582, 532, 482, Start at 782; subtract 50 each time
  10. 754, 704, 654, Start at 954; subtract 50 each time
  11. 285, 235, 185, Start at 485; subtract 50 each time
  12. 772, 722, 672, Start at 972; subtract 50 each time
  13. 566, 516, 466, Start at 716; subtract 50 each time
  14. 435, 385, 335, Start at 585; subtract 50 each time
  15. 751, 701, 651, Start at 901; subtract 50 each time
  16. 356, 306, 256, Start at 506; subtract 50 each time
  17. 686, 636, 586, Start at 786; subtract 50 each time
  18. 871, 821, 771, Start at 971; subtract 50 each time
  19. 540, 490, 440, Start at 640; subtract 50 each time
  20. 680, 630, 580, Start at 780; subtract 50 each time