The place values: hundreds, tens, and units... Welcome Charlie the Crocodile.[r]
Trang 1Spell the numbers
Get out your whiteboards!
Trang 2one
Trang 3three
Trang 4ten
Trang 5seven
Trang 6fourteen
Trang 7nine
Trang 8fifteen
Trang 9twenty
Trang 10seventy-five
Trang 11hundred
Trang 12thousand
Trang 13The place values: hundreds, tens, and units
Trang 14What is the place value
of the underlined digit?
1 4 5
Tens!
Trang 15What digit is in the
units place?
1 4 5
Trang 16What digit is in the
hundreds place?
1 4 5
Trang 17What digit is in the
tens place?
1 4 5
Trang 18Comparing Numbers
Trang 19Welcome Charlie
the Crocodile
Charlie the Crocodile
LOVES eating numbers….
Trang 20However, Charlie
is very hungry…
… so he only ever eats
the biggest number!
1
7
Trang 21So if we have the numbers:
5 2
Which number will Charlie try to eat???
Trang 22How can we show this
mathematically?
5 2 5 2 >
Trang 23Greater than >
Less than <
Trang 25Which number could be missing?
32 > ?
Trang 26Which number could be missing?
54 < ?
Trang 27Which number could be missing?
13 > ?
Trang 28Which number could be missing?
22 > ?
Trang 29Which number could be missing?
41 < ?
Trang 30Which number could be missing?
69 > ?
Trang 31Which number could be missing?
420 < ?
Trang 32Which number could be missing?
93 > ?
Trang 33Which SYMBOL is
missing?
SLIDE NOTE
Trang 344 1 5 2 3
0011 0010 1010 1101 0001 0100 1011 Which SYMBOL is missing?
Trang 354 1 5 2 3
0011 0010 1010 1101 0001 0100 1011 Which SYMBOL is missing?
118 142
Trang 50TB2 p.5
Trang 52TB2 p.5
Trang 55TB2 p.6
Trang 56499, 509, 513, 517, 539, 555 168, 177, 198, 223, 286, 291
741, 738, 719, 707, 682, 679 490, 481, 469, 464, 452, 418