Page 39 - steps 3b.pdf

RM44

Subtraction (1) 3b:l1

Make som e cross-out subtractions. hundreds tens ones
Show how many you want to take-away ~ ~
~ ~ lit
or subtrac t each time by crossing out, ••
like this.
1I

Do these in the same way. Decide how many 1354 -1/2 ==2 Lr 21

to cross out each time. . .

hundreds tens ones hundreds tens ones hundreds tens ones
•• • 11111 • II o 0
o 0
o 0
UIU
o 0
o 0
0
o 0
U 1111

"----_-----II I I ,----I _-----'

hundreds tens ones hundreds tens ones hundreds tens ones
•• • U~U •• 0
o 0
~UU
o 0
0
o 0
o 0
o 0
0
• UU II! ••
"----_-----II I I ,----I _---'

hundreds tens ones hundreds tens ones hundreds tens ones
•• •• •• o 0
o 0
o 0
U~
~
o 0
o 0
o 0
UUI
o 0
o 0
0
•• • ~
"----_------'I I I ,--I __ ---I

-I Subtracting by 'take-away' using 3-digit numbers.

Name
Date
~------------------------~
© 1993 Collins Educational (an imprint of HarperCollinsPublishers) STEPS 3b