๑แบบฝึ กคิดเลขเร็วป. 21. 256 + 178 + 159 = ……………2. 421 – 287 + 389 = ……………3. 642 – 278 + 188 – 247 = ……………4. ( 75 x 12 ) +...
๒1. 256 + 278 + 359 = ……………2. 532 – 287 + 389 = ……………3. 642 – 178 + 488 – 247 = ……………4. ( 75 x 12 ) + 786 = ……………5. 520 – ...
๓1. 56 + 278 + 359 = ……………2. 532 – 87 + 389 = ……………3. 642 – 78 + 488 – 247 = ……………4. ( 39 x 12 ) + 786 = ……………5. 520 – 97 ...
๔1. 256 + 178 + 159 = ……………2. 421 – 287 + 389 = ……………3. 642 – 278 + 188 – 247 = ……………4. ( 75 x 12 ) + 586 = ……………5. 520 – ...
๕1. 256 + 278 + 359 = ……………2. 532 – 287 + 389 = ……………3. 642 – 178 + 488 – 247 = ……………4. ( 75 x 12 ) + 786 = ……………5. 520 – ...
๖1. 56 + 278 + 359 = ……………2. 532 – 87 + 389 = ……………3. 642 – 78 + 488 – 247 = ……………4. ( 39 x 12 ) + 786 = ……………5. 520 – 97 ...
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แบบฝึกคิดเลขเร็วป2

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Transcript of "แบบฝึกคิดเลขเร็วป2"

  1. 1. ๑แบบฝึ กคิดเลขเร็วป. 21. 256 + 178 + 159 = ……………2. 421 – 287 + 389 = ……………3. 642 – 278 + 188 – 247 = ……………4. ( 75 x 12 ) + 586 = ……………5. 520 – 197 + 379 + 148 = ……………6. ( 8 x 97 ) + ( 67 x 12 ) = ……………7. ………..  9 = 76 เศษ 88. 681 12 = ……………9. ( 524 – 287 ) x 9 = ……………10. ( 367 + 486 )  12 = ……………11. ( 469 + 157 – 487 ) x 9 = ……………12. 241 – 189 + 378 = ……………13. 257 + 189 – 477 = ……………14. ( 97 x 8 ) – ( 9 x 57 ) = ……………15. 654 – 287 + 375 = ……………16. ( 378 + 476 )  9 = ……………17. 482 – 357 + 489 = ……………18. ( 568 + 378 ) x 8 = ……………19. 2 ของ 124 – 1 ของ 150 = …………… 3 520. ( 421 – 257 ) x 9 = ……………
  2. 2. ๒1. 256 + 278 + 359 = ……………2. 532 – 287 + 389 = ……………3. 642 – 178 + 488 – 247 = ……………4. ( 75 x 12 ) + 786 = ……………5. 520 – 397 + 379 – 148 = ……………6. ( 9 x 97 ) + ( 57 x 12 ) = ……………7. ………..  8 = 76 เศษ 58. 679 12 = ……………9. ( 524 – 356 ) x 9 = ……………10. ( 367 + 287 )  12 = ……………11. ( 469 + 457 – 287 ) x 9 = ……………12. 541 – 289 + 378 = ……………13. 257 + 489 – 477 = ……………14. ( 9 x 68 ) – ( 9 x 57 ) = ……………15. 654 – 487 + 375 = ……………16. ( 378 + 376 )  9 = ……………17. 634 – 357 + 489 = ……………18. ( 95 + 378 ) x 8 = ……………19. 4 ของ 120 – 7 ของ 210 = …………… 3 220. ( 562 – 257 ) x 8 = ……………
  3. 3. ๓1. 56 + 278 + 359 = ……………2. 532 – 87 + 389 = ……………3. 642 – 78 + 488 – 247 = ……………4. ( 39 x 12 ) + 786 = ……………5. 520 – 97 + 379 – 148 = ……………6. ( 9 x 87 ) + ( 47 x 12 ) = ……………7. ………..  7 = 89 เศษ 58. 921 12 = ……………9. ( 524 – 256 ) x 9 = ……………10. ( 367 + 687 )  12 = ……………11. ( 469 + 57 – 287 ) x 9 = ……………12. 541 – 89 + 378 = ……………13. 98 + 489 – 477 = ……………14. ( 9 x 78 ) – ( 9 x 57 ) = ……………15. 654 – 487 + 75 = ……………16. ( 378 + 576 )  9 = ……………17. 634 – 157 + 489 = ……………18. ( 295 + 378 ) x 8 = ……………19. 4 ของ 360 + 5 ของ 350 = …………… 9 220. ( 562 – 357 ) x 8 = ……………
  4. 4. ๔1. 256 + 178 + 159 = ……………2. 421 – 287 + 389 = ……………3. 642 – 278 + 188 – 247 = ……………4. ( 75 x 12 ) + 586 = ……………5. 520 – 197 + 379 + 148 = ……………6. ( 8 x 97 ) + ( 67 x 12 ) = ……………7. (125 + 145 )  9 = ………………8. 681 8 = ……………9. ( 524 – 287 ) x 9 = ……………10. ( 367 + 486 )  7 = ……………11. ( 469 + 157 – 487 ) x 9 = ……………12. 241 – 189 + 378 = ……………13. 257 + 189 – 477 = ……………14. ( 97 x 8 ) – ( 9 x 57 ) = ……………15. 654 – 287 + 375 = ……………16. ( 378 + 476 )  9 = ……………17. 482 – 357 + 489 = ……………18. ( 568 + 378 ) x 8 = ……………19. 235 + 456 – 175 = ……………20. ( 421 – 257 ) x 9 = ……………
  5. 5. ๕1. 256 + 278 + 359 = ……………2. 532 – 287 + 389 = ……………3. 642 – 178 + 488 – 247 = ……………4. ( 75 x 12 ) + 786 = ……………5. 520 – 397 + 379 – 148 = ……………6. ( 9 x 97 ) + ( 57 x 12 ) = ……………7. ( 456 – 178 )  8 = …………..8. 679 9 = ……………9. ( 524 – 356 ) x 9 = ……………10. ( 367 + 287 )  7 = ……………11. ( 469 + 457 – 287 ) x 9 = ……………12. 541 – 289 + 378 = ……………13. 257 + 489 – 477 = ……………14. ( 9 x 68 ) – ( 9 x 57 ) = ……………15. 654 – 487 + 375 = ……………16. ( 378 + 376 )  9 = ……………17. 634 – 357 + 489 = ……………18. ( 95 + 378 ) x 8 = ……………19. 789 + 234 – 188 = ……………20. ( 562 – 257 ) x 8 = ……………
  6. 6. ๖1. 56 + 278 + 359 = ……………2. 532 – 87 + 389 = ……………3. 642 – 78 + 488 – 247 = ……………4. ( 39 x 12 ) + 786 = ……………5. 520 – 97 + 379 – 148 = ……………6. ( 9 x 87 ) + ( 47 x 12 ) = ……………7. ( 500 – 178 )  7 = ……………..8. 921 12 = ……………9. ( 524 – 256 ) x 9 = ……………10. ( 367 + 687 )  12 = ……………11. ( 469 + 57 – 287 ) x 9 = ……………12. 541 – 89 + 378 = ……………13. 98 + 489 – 477 = ……………14. ( 9 x 78 ) – ( 9 x 57 ) = ……………15. 654 – 487 + 75 = ……………16. ( 378 + 576 )  9 = ……………17. 634 – 157 + 489 = ……………18. ( 295 + 378 ) x 8 = ……………19. ( 189 + 145 ) x 6 = ……………20. ( 562 – 357 ) x 8 = ……………

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