Decimals treasure hunt
Make commas and decimals understandable with our interactive GPS scavenger hunts! Children learn maths with numbers through practical real-world tasks, from measuring distances to calculating prices.
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Be the first to create a mathematics treasure huntFeatured this week: example questions for Decimals
New example questions from the library every Monday. Updated on 12 October 2026.
The hose is 9.7 metres long. Is that almost 10 metres?
Yes, almost 10 metres
No, very far from 10 metres
Exactly 10 metres
97 metres
Which number is before the comma in 2.9?
2
9
29
92
Which number is before the comma in 1.5?
1
5
15
51
The monkey eats 7.5 bananas. How many is that?
7 whole bananas and half a banana
75 whole bananas
7 whole bananas
5 whole bananas
Which number is bigger: 9.3 or 9.1?
9,3
9,1
They are the same size
91
Grandma bakes 4.5 cakes. How many is that?
4 whole cakes and half a cake
45 whole cakes
4 whole tarts
5 whole tarts
The penguin has 6.1 fish. How many whole fish is that?
6 whole fish
1 whole fish
61 whole fish
7 whole fish
Which number is bigger: 6.5 or 6.2?
6,5
6,2
They are the same size
62
What is 0.7 + 0.3?
1,0
0,10
0,4
0,9
How much is 0.25 euros in cents?
25 cents
2.5 cents
50 cents
10 cents
What is 0.6 + 0.1?
0,7
0,61
0,5
0,8
How much is 0.05 euros in cents?
5 cents
50 cents
0.5 cents
25 cents
If a glass is a quarter full, how much water is in it?
0.25 glass
0.75 glass
0.5 glass
0.1 glass
How much is 0.75 euros in cents?
75 cents
7.5 cents
50 cents
25 cents
If a chocolate bar has 4 pieces, how many is 1 piece?
0.25 bar
0.5 bar
0.4 bar
0.1 bar
What is 1.0 - 0.3?
0,7
0,3
0,13
0,73
What is 2.3 + 4.8?
7,1
6,1
7,11
6,11
How much is nine and three tenths as a comma number?
9,3
9,03
93
0,93
What do you get if you round off 3.7 to whole numbers?
4
3
3,5
4,0
A bottle of water contains 0.5 litres. How many millilitres is that?
500 ml
50 ml
5 ml
5000 ml
Which comma number fits the fraction 7/10?
0,7
7,10
0,07
7,0
What is 2.5 - 1.2?
1,3
1,7
3,7
0,3
A pound of butter weighs 0.45 kg. How many grams is that?
450 g
45 g
4500 grams
4.5 grams
Which comma number has 6 whole numbers and 8 tenths?
6,8
8,6
6,08
68
What is 6.5 ÷ 5?
1,3
1,5
13
0,13
What is 12.8 ÷ 4?
3,2
3,6
32
2,8
How much is 15.4 - 6.8?
8,6
9,4
22,2
8,4
What is 7.45 rounded to whole numbers?
7
8
7,5
7,4
What is 4.6 × 100?
460
46
0,46
4600
What is 0.7 × 8?
5,6
56
8,7
0,56
What is 6.83 rounded to one decimal place?
6,8
6,9
7,0
6,80
What is 3.7 + 2.8?
6,5
5,15
6,15
5,5
Which number is smallest: 0.7, 0.65, 0.699 or 0.71?
0,65
0,699
0,7
0,71
What is 9.36 + 4.8 - 2.16?
12
12,16
11,84
16,32
A portion of ice cream costs €2.75. You buy 3.5 servings. How much do you pay?
€9,625
€9,60
€6,25
€8,25
Round off 23.567 to 1 decimal place.
23,6
23,5
24
23,57
Which number lies between 4.7 and 4.8?
4,73
4,69
4,82
4,6
Which number is largest: 1.09, 1.9, 1.009 or 1.99?
1,99
1,9
1,09
1,009
How much is 12.6 ÷ 0.3?
42
3,78
4,2
420
What is 2.8 × 1.25?
3,5
3,75
4,05
2,5
A speed of 72 km/h is how many m/s?
20 m/s
25.9 m/s
7.2 m/s
259.2 m/s
What percentage is 0.85?
85%
8,5%
0,85%
850%
What is 1,2³ (1,2 to the power of 3)?
1,728
3,6
1,44
2,16
A weight of 2.5 kg is divided into portions of 0.125 kg. How many portions?
20 servings
16 servings
24 servings
0.3125 portions
One product costs €47.85. At 15% off, what are you paying?
€40,67
€40,32
€41,85
€39,75
How much is 7.35 + 4.8 - 2.15?
10
9,8
10,2
14,3
What is 1.6 × 1.25?
2
2,85
1,28
0,2
How much is 3.25 + 1.8 + 0.95?
6
5,9
6,1
5,8
What is 11.25 - 4.789?
6,461
6,561
7,461
6,361
Calculate √0.81
0,9
0,85
0,95
0,75
What is 25% of 6.4?
1,6
2,4
1,5
0,16
What is 12.48 ÷ 3.2?
3,9
3,6
4,2
4,8
How much is 8.4 + 3.67 + 1.258?
13,328
13,268
13,388
12,328
Calculate 0.375 + 0.625 × 0.8
0,875
0,8
0,95
0,75
What is 0.48 expressed as a percentage?
48%
4,8%
0,48%
480%
What is 7.5 ÷ 0.025?
300
30
3000
0,3
Which comma number is exactly in the middle between 0.37 and 0.43?
0,4
0,39
0,41
0,38
What is the result of 11.2 ÷ 1.4?
8
9,8
15,68
0,8
Which fraction is equal to 0.625?
5/8
3/5
625/1000
6/10
What is the value of 0.3̄ (0.3 repetitive) as a fraction?
1/3
3/10
33/100
3/9
How much is 0.008 × 1000?
8
0,8
80
0,08
Which of these numbers is smallest?
0,0067
0,067
0,0076
0,0670
What is 3.2 ÷ 0.8?
4
2,56
40
0,4
How much is 0.6 + 0.35 + 0.095?
1,045
1,05
1,0345
0,945
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Frequently asked questions
A Decimals scavenger hunt is a GPS-guided outdoor activity with quiz questions about Decimals, part of the theme Mathematics. You walk a route past various locations and answer fun questions along the way.
There are 3017 questions available about Decimals: 3017 multiple choice questions, 0 open questions and 0 assignments. The category Mathematics has more than 49999 questions in total.
There are Decimals questions for all ages: from 3-5 years (toddlers) to 20+ (adults). The questions are automatically adapted to the chosen level.
Go to oppatt.io, create a free account, choose the theme Mathematics and select Decimals as the topic. Choose an age category and location, and you'll have a complete scavenger hunt within a minute.