Test: Arithmetic V - Challenging

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Question 1:   Calculate: 0.308:0.14+1.2
3.4
340
0.34
34
Question 2:   Calculate: 6.85×3.21.7×6.85
0.10275
1.0275
10.275
102.75
Question 3:   Find the arithmetic mean of the numbers 1 4 and 5 2 7
5
4
1 43 56
2 43 56
Question 4:   Calculate: ( 43 1 4 ) 4 : ( 3 4 ) 2
1 3 4
1
1 9 16
9 16
Question 5:   Simplify the expression: 7 3 12 + 27
5 3
8 3
3
2 3
Question 6:   When a cyclist traveled 0.6 of the way, there were still 60 miles left to travel. How many miles the cyclist planned to travel?
150miles
160miles
120miles
100miles
Question 7:   Alloy of tin and lead contains 60% of tin. What is the weight of the alloy that contains 120 grams of tin?
180g
2kg
150g
200g
Question 8:   Calculate: 3.2× 10 2 +2.1× 10 3
341× 10 2
3.41× 10 2
34.1× 10 2
5.3× 10 5
Question 9:   Calculate: | 0.25× 4 7 |:( 40 )+ 1 40
3 140
3 14
3 14
3 140
Question 10:   Calculate: 64 2 + 2
2
2
2
2