Round to the nearest 100.

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Presentation transcript:

Round to the nearest 100

When rounding to the nearest hundred: If the tens digit is 1, 2, 3 or 4, go BACK to the previous multiple of a hundred. If the tens digit is 5, 6, 7, 8 or 9, go ON to the next multiple of a hundred.

Round 235 to the nearest 100 200 210 220 230 240 250 260 270 280 290 300 235 200

Round 235 to the nearest 10 230 231 232 233 234 235 236 237 238 239 240 235 240

Round 281 to the nearest 100 200 210 220 230 240 250 260 270 280 290 300 281 300

Round 281 to the nearest 10 280 281 282 283 284 285 286 287 288 289 290 281 280

Round 412 to the nearest 100 400 410 420 430 440 450 460 470 480 490 500 412 400

Round 412 to the nearest 10 410 411 412 413 414 415 416 417 418 419 420 412 410

Round 668 to the nearest 100 600 610 620 630 640 650 660 670 680 690 700 668 700

Round 668 to the nearest 10 660 661 662 663 664 665 666 667 668 669 670 668 670

Round 550 to the nearest 100 500 510 520 530 540 550 560 570 580 590 600 550 600

Round 250 to the nearest 100 200 210 220 230 240 250 260 270 280 290 300 250 300