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Number, NAP-K4-CA14

The table below compares the approximate populations of two countries.
 

 
Approximately how many more people live in Cuba than in Benin?

37 900 47 900 379 000 479 000
 
 
 
 
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`379\ 000`

Show Worked Solution

`text(Extra people living in Cuba)`

`= 11\ 475\ 000 – 11\ 096\ 000`

`= 379\ 000`

Filed Under: Basic Concepts and Calculations, Basic Concepts and Calculations Tagged With: Band 8, smc-3173-70-Estimates (non calc), smc-890-70-Estimates (non calc)

Number, NAP-A4-NC21

What is the answer to  `8.8 ÷ 0.4`?

0.022 0.22 2.2 22
 
 
 
 
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`22`

Show Worked Solution
`8.8 ÷ 0.4` `= 88 ÷ 4`
  `=22`

Filed Under: Basic Concepts and Calculations, Basic Concepts and Calculations Tagged With: Band 9, smc-3173-70-Estimates (non calc), smc-890-70-Estimates (non calc)

Number, NAP-B4-NC31

Which number has the largest value?

`1/3` `sqrt (0.16)` `0.38` `(0.6)^2`
 
 
 
 
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`sqrt (0.16)`

Show Worked Solution

`text(Express each as a decimal:)`

`1/3` `= 0.333…`
`sqrt(0.16)` `= 0.4`
`0.38` `= 0.38`
`(0.6)^2` `= 0.36`

 

`:. sqrt(0.16)\ text(is the largest value.)`

Filed Under: Basic Concepts and Calculations, Basic Concepts and Calculations Tagged With: Band 10, smc-3173-30-Square roots, smc-3173-40-Integer Indices, smc-3173-70-Estimates (non calc), smc-890-30-Square roots, smc-890-40-Integer Indices, smc-890-70-Estimates (non calc)

Number, NAP-B4-NC11

`sqrt (190)` is between

`9 and 12` `12 and 14` `14 and 20` `40 and 50`
 
 
 
 
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`12 and 14`

Show Worked Solution
`12^2` `= 144`
`13^2` `= 169`
`14^2` `= 196`

 

`:.sqrt190\ text(is between 12 and 14.)`

Filed Under: Basic Concepts and Calculations, Basic Concepts and Calculations, Basic Concepts and Calculations Tagged With: Band 7, smc-3143-50-Square roots, smc-3143-70-Estimates, smc-3173-30-Square roots, smc-3173-70-Estimates (non calc), smc-890-30-Square roots, smc-890-70-Estimates (non calc)

Number, NAP-H4-NC16

Lily made a mobile phone call that lasted 39 minutes.

Her mobile phone provider charges her 19 cents per minute for calls.

Lily estimated that the total cost of the phone call was about $8.

Lily's estimate was

 
less than the actual cost.
 
equal to the actual cost.
 
more than the actual cost.
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`text(more than the actual cost.)`

Show Worked Solution

`text(An estimate of the cost could be just under:)`

`text(40 minutes × 20 cents = $8)`

`:.\ text($8 estimate is more than the actual cost.)`

Filed Under: Basic Concepts and Calculations, Basic Concepts and Calculations Tagged With: Band 8, smc-3173-70-Estimates (non calc), smc-890-70-Estimates (non calc)

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