Round off to nearest tenRound off to nearest hundredRound off to nearest thousand

Created By Made Nuryadi

82 is between 80 and 90Is nearer to 80 than to 90So, 82 is 80 when rounded off to nearest ten

Panjang pita B 17 cm 17 terletak antara 10 dan 20 17 lebih dekat ke 20 dibandingkan ke 10Sehingga 17 ≈ 20

Concept:To round off a number to the nearest Ten, Untuk membulatkan ke puluhan terdekatstudy the digit in the ones place:Pelajari nilai tempat satuannyaif it is 5 or greater than 5, round upJika nilainya sama dengan 5 atau lebih besar dari 5, bulatkan keatas.if it is smaller than 5, round downJika lebih kecil dari 5 bulatkan kebawah

78 ≈ 8064 ≈ 60

Round off each number to the nearest ten

a.42b.25c.97d.64e.114f. 179g.345

Concept:To round off a number to the nearest hundred, study the digit in the tens place:if it is 5 or greater than 5, round upif it is smaller than 5, round down

270 is between 200 and 300It is nearer to 300 than to 200270 is 300 when round off to the nearest

hundred

Using the number line, round off each number to the nearest hundred

340 _____375 _____445 _____490 _____

a) 24 195 is ____when round off to the nearest hundred

b) 65 250 is ____when round off to the nearest hundred

c) 68 890 is ____when round off to the nearest hundred

d) 35 450 is ____when round off to the nearest hundred

Round off each number to the nearest hundred

a) 560b) 992c) 3560d) 9890e) 4770

Round off each number to the nearest hundred

a) 449b) 7940c) 61236d) 47960e) 89950

Concept:To round off a number to the nearest thousand, study the digit in the hundreds place:if it is 5 or greater than 5, round upif it is smaller than 5, round down

The price of a math book is Rp 34.600,- when rounded off to nearest thousand rupiah. What could the price of the math book be?

34.600 is between 34.000 and 35.000It is nearer to 35.000 than to 34.000

34.000 is 35.000 when round off to the nearest thousand

Round off each number to the nearest thousand

a) 14 495b) 79.400c) 71.500d) 47.960e) 89.950

Round off each number to the nearest thousand

a) 56.678b) 45.555c) 68.780d) 123.567e) 245.650

1. Find three numbers when rounded off to the nearest hundred is equal to if rounded off to the nearest thousand.

2. There were 3750 visitors at a science exhibition. Round off the number of visitors to nearest hundred and to nearest thousand.

Round off each number to the nearest 100. then estimate the value off the following.

a) 1258 + 4108b) 3630-1215c) 2998 x 3

Let’s find out in shaping math book activity part 1at page 11-12

LETS HAVE FUN IN MATH

By Mr. Made