which of the following is sum of
8+7/10+9/100
1)96.164
2)96.614
3)96.154
4)96.514
please please tell it's important
Answers
Step-by-step explanation:
800/100 + 70/100 + 9/100
879/100
8.79
8+ 0.7 + 0.09 = 8.79
hope it helps you....☺☺☺
Answer:
561.129 = 500 + 60 + 1 + 0.1 + 0.02 + 0.009
= 5 hundreds + 6 tens + 1 ones + 1 tenths + 2 hundredths + 9 thousandths
= 500 + 60 + 1 + 1/10 + 2/100 + 9/1000
Again,
493.2 = 4 hundreds + 9 tens + 3 ones + 2 tenths
= 400 + 90 + 3 + 2/10
1436.74 = 1 thousands + 4 hundreds + 3 tens + 6 ones + 7 tenths + 4 hundredths
= 1000 + 400 + 30 + 6 + 7/10 + 4/100
Note: When a decimal is missing either in the integral part or decimal part, substitute with 0.
1. Write in expanded form:
(i) 3479.105
= 3 thousands + 4 hundreds + 7 tens + 9 ones + 1 tenths + 0 hundredths+ 5 thousandths
= 3000 + 400 + 70 + 9 + 1/10 + 0/100 + 5/1000
(ii) 7833.45
= 7 thousands + 8 hundreds + 3 tens + 3 ones + 4 tenths + 5 hundredths
= 7000 + 800 + 30 + 3 + 4/10 + 5/100
(iii) 21.1097
= 2 tens + 1 ones + 1 tenths + 0 hundredths + 9 thousandths + 7 ten thousandths
= 20 + 1 + 1/10 + 0/100 + 9/1000 + 7/10000
(iv) 524.1
= 5 hundreds + 2 tens + 4 ones + 1 tenths
= 500 + 20 + 4 + 1/10
(v) 143.011
= 1 hundreds + 4 tens + 3 ones + 0 tenths + 1 hundredths + 1 thousandths
= 100 + 40 + 3 + 0/10 + 1/100 + 1/1000
(vi) 840.006
= 8 hundreds + 4 tens + 0 ones + 0 tenths + 0 hundredths + 6 thousandths
= 800 + 40 + 0 + 0/10 + 0/100 + 6/1000
(vii) 64.21
= 6 tens + 4 ones + 2 tenths + 1 hundredths
= 60 + 4 + 2/10 + 1/100
(viii) 4334.334
= 4 thousands + 3 hundreds + 3 tens + 4 ones + 3 tenths + 3 hundredths + 4 thousandths
= 4000 + 300 + 30 + 4 + 3/10 + 3/100 + 4/1000
2. Write as decimal fractions:
(i) 8 thousands + 8 ones + 3 tenths + 9 hundredths
= 8008.39
(ii) 4000 + 7 + 5/10 + 6/100
= 4007.56
(iii) 6 hundreds + 9 tens + 8 tenths + 4 thousandths
= 690.804
(iv) 3 tens + 7 ones + 6 hundredths + 8 thousandths
= 37.068
(v) 400 + 50 + 1 + 9/100
= 451.09
(vi) 800 + 70 + 2 + 8/10 + 5/1000
= 872.805
(vii) 6 tens + 5 tenths + 8 hundredths
= 60.58
(viii) 9 hundreds + 4 tens + 3 tenths + 4 hundredths
= 940.34
3. Write the following in short form.
(i) 100 + 0.5 + 0.06 + 0.008 (ii) 80 + 1 + 0.02 + 0.005
Solution:
(i) 100 + 0.5 + 0.06 + 0.008
= 100.568
(ii) 80 + 1 + 0.02 + 0.005
= 81.025
4. Write the place-value of the underlined digits.
(i) 2.47 (ii) 11.003 (iii) 5.175
Solution:
(i) 2.47
Place-value of 7 in 2.47 is 7 hundredths or 0.07.
(ii) 11.003
Place-value of 3 in 11.003 is 3 thousandths or 0.003.
(iii) 5.175
Place-value of 1 in 5.175 is 1 tenths or 0.1.