Tuesday, December 4, 2012

Decimals - foundation


Test Bite - BBC Math


You scored 10 out of 10
1. 1.1 + 2.4 
You said: 3.5

Well done. You added correctly. 
2. 3.25 + 1.04 
You said: 4.29

Well done, you remembered to keep the decimal points aligned. 
3. 5.26 - 1.18 
You said: 4.08

Well done, you remembered to keep the decimal points aligned. 
4. 3.75 + 1.23 - 2.41 
You said: 2.57

Well done, you added first, then subtracted 2.41. 
5. 3.07 × 10 
You said: 30.7

Well done, you remembered to move the decimal point one place to the right. 
6. 2.5 ÷ 100 
You said: 0.025

Well done - you remembered to move the decimal point two places to the left. 
7. 2.31 × 2 
You said: 4.62

Well done, you multiplied correctly. 
8. 0.8 × 1.2 
You said: 0.96

Well done, you remembered that there should be two digits after the decimal point. 
9. 6.074 ÷ 2 
You said: 3.037

Well done, you calculated correctly. 
10. 4.2 ÷ 0.07 
You said: 60

Well done, you saw that 4.2 ÷ 0.07 is equivalent to 420 ÷ 7

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