ROUNDING.

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Presentation transcript:

ROUNDING

ROUNDING In real life we are going to come in contact with many different types of numbers:

ROUNDING Some numbers are going to be very small and others are going to be very large or have a lot of digits. 2 4,274,378,135

Round 4,695 to the nearest hundred Round 0.763 to the nearest tenth ROUNDING We don’t need all of the digits, so we ROUND Round 4,695 to the nearest hundred Round 0.763 to the nearest tenth

PLACE VALUES TENS ONES TENTHS THOUSANDS HUNDREDS HUNDREDTHS MILLIONS NAMES OF THE PLACE VALUES TENS ONES TENTHS THOUSANDS HUNDREDS HUNDREDTHS MILLIONS THOUSANDTHS TEN THOUSANDS HUNDRED THOUSANDS DECIMAL POINT

PLACE VALUES 8 5 2 850 TENTHS HUNDREDTHS THOUSANDTHS 855 TENS ONES ROUND TO THE NEAREST 10 851 852 2 5 8 TENTHS HUNDREDTHS THOUSANDTHS 853 854 855 TENS ONES 856 THOUSANDS HUNDREDS MILLIONS 857 TEN THOUSANDS HUNDRED THOUSANDS 858 859 860

PLACE VALUES 8 5 7 850 855 TENS ONES THOUSANDS HUNDREDS MILLIONS ROUND TO THE NEAREST 10 851 852 7 5 8 853 854 855 TENS ONES 856 THOUSANDS HUNDREDS MILLIONS 857 TEN THOUSANDS HUNDRED THOUSANDS 858 859 860

PLACE VALUES 3 6 630 635 TENS ONES THOUSANDS HUNDREDS MILLIONS ROUND TO THE NEAREST 10 631 632 6 3 633 634 635 TENS ONES 636 THOUSANDS HUNDREDS MILLIONS 637 TEN THOUSANDS HUNDRED THOUSANDS 638 639 640

PLACE VALUES 2 8 5 280 285 TENS ONES THOUSANDS HUNDREDS MILLIONS ROUND TO THE NEAREST 10 281 282 5 8 2 283 284 285 TENS ONES 286 THOUSANDS HUNDREDS MILLIONS 287 TEN THOUSANDS HUNDRED THOUSANDS 288 289 290

PLACE VALUES 3 6 1 300 350 TENS ONES THOUSANDS HUNDREDS MILLIONS ROUND TO THE NEAREST 100 310 320 1 6 3 330 349 350 TENS ONES 360 THOUSANDS HUNDREDS MILLIONS 370 TEN THOUSANDS HUNDRED THOUSANDS 380 390 400

PLACE VALUES 7 5 2 700 750 TENS ONES THOUSANDS HUNDREDS MILLIONS ROUND TO THE NEAREST 100 710 720 2 5 7 730 749 750 TENS ONES 760 THOUSANDS HUNDREDS MILLIONS 770 TEN THOUSANDS HUNDRED THOUSANDS 780 790 800

PLACE VALUES 5, 7 3 8 5,700 5,750 TENS ONES THOUSANDS HUNDREDS ROUND TO THE NEAREST 100 5,710 5,720 5, 7 3 8 5,730 5,749 5,750 TENS ONES 5,760 THOUSANDS HUNDREDS MILLIONS 5,770 TEN THOUSANDS HUNDRED THOUSANDS 5,780 5,790 5,800

PLACE VALUES 1, 4 8 9 1,400 1,450 TENS ONES THOUSANDS HUNDREDS ROUND TO THE NEAREST 100 1,410 1,420 1, 4 8 9 1,430 1,449 1,450 TENS ONES 1,460 THOUSANDS HUNDREDS MILLIONS 1,470 TEN THOUSANDS HUNDRED THOUSANDS 1,480 1,490 1,500

PLACE VALUES 6, 3 1 4 6,000 6,500 TENS ONES THOUSANDS HUNDREDS ROUND TO THE NEAREST 1000 6,100 6,200 6, 3 1 4 6,300 6,409 6,500 TENS ONES 6,600 THOUSANDS HUNDREDS MILLIONS 6,700 TEN THOUSANDS HUNDRED THOUSANDS 6,800 6,900 7,000

PLACE VALUES 8, 5 3 9 8,000 8,500 TENS ONES THOUSANDS HUNDREDS ROUND TO THE NEAREST 1000 8,100 8,200 8, 5 3 9 8,300 8,409 8,500 TENS ONES 8,600 THOUSANDS HUNDREDS MILLIONS 8,700 TEN THOUSANDS HUNDRED THOUSANDS 8,800 8,900 9,000

PLACE VALUES 2, 1 6 4 2,000 2,500 TENS ONES THOUSANDS HUNDREDS ROUND TO THE NEAREST 1000 2,100 2,200 2, 1 6 4 2,300 2,409 2,500 TENS ONES 2,600 THOUSANDS HUNDREDS MILLIONS 2,700 TEN THOUSANDS HUNDRED THOUSANDS 2,800 2,900 3,000

PLACE VALUES 3 9, 8 7 1 39,000 39,500 TENS ONES THOUSANDS HUNDREDS ROUND TO THE NEAREST 1000 39,100 39,200 3 9, 8 7 1 39,300 39,409 39,500 TENS ONES 39,600 THOUSANDS HUNDREDS MILLIONS 39,700 TEN THOUSANDS HUNDRED THOUSANDS 39,800 39,900 40,000

YOUR TURN BAHAMIAN MATHEMATICS LEVEL A PAGE 15 #1, 2, 3 (a through e only)

ROUNDING WITH DECIMALS SAME AS WHOLE NUMBERS ROUND 3.42 TO THE NEAREST TENTH 3.41 3.42 3.43 3.44 3.46 3.47 3.48 3.49 3.4 3.5 3.45

PLACE VALUES 3 4 2 1 2 3 4 5 6 7 8 9 ANSWER: 3.4 TENS ONES TENTHS 1 2 3 4 5 6 7 8 9 ROUND TO THE NEAREST TENTH 3 4 2 TENS ONES TENTHS THOUSANDS HUNDREDS HUNDREDTHS MILLIONS THOUSANDTHS TEN THOUSANDS HUNDRED THOUSANDS ANSWER: 3.4

PLACE VALUES 6 8 7 1 2 3 4 5 6 7 8 9 ANSWER: 6.9 TENS ONES TENTHS 1 2 3 4 5 6 7 8 9 ROUND TO THE NEAREST TENTH 6 8 7 TENS ONES TENTHS THOUSANDS HUNDREDS HUNDREDTHS MILLIONS THOUSANDTHS TEN THOUSANDS HUNDRED THOUSANDS ANSWER: 6.9

15.342 ROUND TO THE NEAREST Whole number ANSWER:15 LOOK AT THE VALUE OF PI ROUND TO THE NEAREST Whole number 15.342 ANSWER:15