Page 12 - 01-Yr5_Front cover-ccp.indd

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• Integer patterns •
If you press El ofter a positive number,
it changes it to a negative number
a greater than 2°c Some calculators use other symbols
b less than 2°C. for thef3 key, such as El .
Check that your calculator has a key like El .
ilJ Write true or false for each of
these statements. []j • Follow the instructions on this card to program your calculator.
a 2·c > s·c b -3•c < o·c 111cl11-1-i=i ol [I]
c s·c > -s•c d 1·c < -3· c ·
e -5·c < -4•c f -2· c > -1 ·c Press 0.
• Press8 five times and write down the sequence of numbers.
Use < or > to make these • Write down the sequence of numbers you think the calculator 3, 2, 1, 0, -1, -2, -3, -4, -s, -6
statements true. will display if you pressc:Jtive more times.
• Check your answers with your colculator.
@J Repeat IJJj using each of these cards.
Press m fJ • II a E Press B fJ a D a Iii
Press DD Press D Elm a q, 7, S, 3, 1, -1, -3, -s, -1, -q
Press m 1:1 D D a liJ Press a 0 II • a liJ b -1 o, -8, -6, -4, -2, o, 2, 4, 6, 8
Press 0 II Press 0 II
Show that you can
make15 true statements Pressl!lDDDDlll\J. Pressmoaaam c 1 ' 6, 11 ' 16, 21 ' 26, 31 ' 36, 4 1 ' 46
using < and the Press El I.I Press De=
temperatures marked here.
d -8, -12, -16, -20, -24, -28, -32, -36,
@.] Copy and complete these sequences.
-40, -44
a 12, 6, •. -5, •. • b -17, -10, • ••••• 18
c -24, -14, •••• • • 26 d 34, 23, 12, •. • • •
e 48, sq, 70, 81, q2, 103, 114, 12s,
Li] Design cards to show how you con program your colculotor to display
each of the sequences in rn . 136, 147
t -s2, -sq, -66, -73, -80, -81, -%,
Now try RM9.
I ~"""'' I
-101 , -108, -11 s
[I] [gJ ~
a 3°C, 4 °C, S°C, 6°C a false b true a -10°C < 14°C a 1 2, 6, 0, -6, -1 2, -1 8 a Press (9 (fil EJ EJ 0 (QJ .
Press [J rnJ .
b 1 °C, 0°C, -1 °C, -2°C, c true d false b -4°c < 4°C b -17, -10, -3, 4, 11, 18
-3°c, -4 °C, -s°C, b Press (9 (IJ EJ EJ 0 (QJ .
-6°C e true f false c 1 S°C > -20°c c -24, -14, -4, 6, 16, 26
Press (gJ ~ [+/-].
d -14°c > -20°c d 34, 23, 12, 1, -10, -21
c Press ©ITJEJEJEJ(QJ .
e -10°c < 0°C
Press rn ~ [+1-1.
d Press (9[J [JEJEJ EJ(QJ .

Challenge Press (iJ (fil .
-4°c < -3°c -3°c < -2°C -2°C < -1°C -1°C < 0°C 0°C < 1°C
-4°c < -2°C -3°c <-1°C -2°C < 0°C -1°C < 1°C
-4°c < -1°C -3°c < 0°C -2°C < 1°C
-4°c < 0°C -3°c < 1°C
-4°c < 1°C