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• Numbers in place •• .~_ ~ • • Working with numbers . _, calculator I
&r a •
~:I'NS1'~ the red numeral is worth 600. / ~ IT] Copy and complete. ~:I'I'lS1'~
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In the number on my T-shirt,
'
PAGE 56 a 14500 is the same as . tens or . hundreds. tens. PAGE 57
b 16 000 is the same as
thousands or
hundreds or.
IT] What is the red numeral worth in these numbers? ~/3 672 ~
i]] 18249 can be written in expanded form like this: 10000+8000+200+40+9.
OJ a ~ Write these in expanded form. OJ
\ --.::>'
~16:'~ @] Write what you need to add to this number :JU6 n8 1 as 1450 tens or 145
a 60 b 6 ~ a 23417 b 16100 c 21310 d 19004 e 13040 f 100020 a 14 500 is the same
c 60000 d 6000 to make your calculator display show: L I I .
/
/
a 1 256 78.1 b 1 2Lf688·1 c I 2Lf9 78·1 hundreds.
i]] Write the next three n~mbers in these sequences. b 16000 is the same
[g] a 8 500 9 000 9 500 d I 276 78., e 1 f I LfL/6 78., as 16 thousands or
/
/
b 11211 12211 13211 __ 2'-l679·1
a 1 0 000 1 0 500 11 000 c 5 000 10 000 15 000 0 Write what you need to subtract from this 160 hundreds or
in each sequence. number to make the calculator show: 1600 tens.
b 14211 15211 16211 @] Write sequences of 5-digit numbers. a ....-------.
~
c 20000 25000 30000 a Count back in five hundreds _ _ _ _ _ _ ~;; [g]
b Count back in thousands _ _ _ _ _ _
c Count back in five thousands _ _ _ _ _ _ .;, .
a 2341 7 = 20 000 +
o Write a 5-digit number with: . [I] Make 10 statements
a 8 in the thousands position b 5 in the hundreds position .e.ffi~Od> 3000 + 400 + 1 0 + 7
Open: similar examples c 2 in the ten-thousands position d 1 in the tens position. b 1 6 1 00 = 1 0 000 +
to: 6000 + 100
c 21 31 0 = 20 000 +
a 7a 523, 7a 023, 77 523,
CHALLENGE 1 000 + 300 + 1 0
77 023, 76 523, 76 023
/
Enter 1 /98 762.1 on your calculato .... r. ____ ... d 1 q 004 = 10000 +
b 54 321 , 53 321 , 52 321 , Record how you can change the display to I 0.1 using: qOOO + 4
51 321, 50 321 , 4q 321 a 2 subtractions b 3 subtractions c 4 subtractions d 5 subtractions. e 13040 = 10000 +
c 36qa7, 31 qa7, 26qa7, 3000 + 40
21 qa7, 16 qa7, 11 qa7 f 100020 = 100000 + 20
[§J [ID ~
Open: similar a 71 qqO b 62100 c lq473 d 33323 a 1000 b 10 c 300 a 1 0 000 b 4000 c 60
examples to: d 3000 e 1 f 20000 d q e 300 f 5000
a 1~246 b 12534 [!]
c 26 taq d qaTi16 a 25557 b lqq21 c 10000 d 100000 [§J Challenge
---
23461 > 23416, 23461 > 23 164, Open: for .example:
[I] 23461 > 231~6, 23416> 23164, a 1 qa 762 - 1 qa 000 - 762 = 0
23416> 23146, 23164> 23146, b 1 qa 762 - 62 - a700 - 1 qO 000 = 0
a 1 0 11 1 b 23 6aO c qOO 1 d qa qqq
23641 > 23164, 1\'~3641 > 23416, c 1 qa 762 - 1 qO 000 - aooo - 700 -
62 = 0
~ 23 641 > 23 146, 23641 > 23461 d 1 qa 762 - 2 - 60 - 700 - aooo -
"",
. a 1 0 055 b 1 0 1 27 c 1 2 46a d 22 q 14 lqOOOO = 0