Rounding
Round 3.837 one decimal place.
3.8
Lilly scores in the gymnastics competition were 8.62, 9.54, 9.35, and 8.9. What is her total score?
36.41 (Addition)
Add these decimals. 21.74 + 8.27
30.01
Multiply these decimals. 0.03 x 100
3
Subtract these decimals.
3.53 - 2
1.53
1.5 divided by 3
0.5
Round 168.984 to the hundredths place.
168.98
Sam has $410.32 in his checking account. How much does he have in his account after he makes a deposit of $248.75 and withdrawal of $152.80?
$506.27 (Add, Subtract)
Add these decimals.
17 + 9.54
26.54
Multiply these decimals. 0.7 x 2.6
1.82
Subtract these decimals.
2.15 - 1.05
1.1
12.84 divided by 12
1.07
Round 31.961 to the tenths place.
32.0 or 32
The weight of a jar of flour is 1.8 kg. What is the total mass of 7 such jars of flour?
12.6 kg (Multiply)
Add these decimals. 6.125 + 18.9
25.025
Multiply these decimals.
0.23 x 7.5
1.725
Subtract these decimals.
10.71 - 0.7
10.01
0.4 divided by 50
0.008
Round 905.0732 to 2 significant figures.
910
Richard studies for 36.5 hours over a period of 7 days. On average, how much did he study each day?
5.2 hours per day (Divide)
Add these decimals. 4.678 + 29.1
33.778
Multiply these decimals. 2.5 x 3.04
7.6
Subtract these decimals.
16.8 - 3.72
13.08
1.012 divided by .02
50.6
Round 0.008069 to 3 significant figures.
0.00807
If pecans cost $27.36 per kg, how much would it cost to buy 8.7 kg?
$238.03 (Multiply and round to 2 d.p.)
Add these decimals.
5.2 + 3.813 + 0.7
9.713
Multiply these decimals. 4.04 x 5.3 x 0.7
14.9884
Subtract these decimals.
120.9 - 2.54 - 1.82
116.54
7.14 divided by 0.007
1020