Page 36 - steps 3b.pdf

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• Order of adding • • • I number cards I • > and < ••
~:I.I.l~I'~ ~~~~l~~~
PAGE 62 Use cords like these to help you if you need them. OJ Copy and complete these.
OJmrn • •• lIl a 8+5= b 9+4=
OJ Gather up the tens to help you odd these. c 7+6= d 7+9=
e 11 + 7 =
f 14+5=
9 17+3= h 13+6=
a 3+7+4 b 4+6+8
Use the answers to help you
c 8+8+2 d 9+ 1 +9
with the rest of the page.
e 5+7+3 f 10+0+7
~--~"
m Make up six more examples like those in OJ. ~~~
rn @] Decide the easiest way to odd these. Write down what you do. m Write <, > or = instead of ~: to make each number se
8+5 t..: 7+9
b 11 +7 t..: 8+5
a
a (3 + 7) + 4 = 14 am. b ••• clIl.OJ d 13+6 t..: 14+5 e 17+3 ~: 11+7
9 9+4 ~: 13+6 h 14+5 t,.: 17+3
b (4 + 6) + 8 = 18 d. rn. e @J III [§] ~rn rn Do these in the same way as m.
c 8 + (8 + 2) = 18 a 80 + 50 t..: 70 + 90 b 90 + 40 t,.: 70 + 60
m Copy and complete these pairs. Put a loop round c 90 + 40 ~: 80 + 50 d 110 + 70 t..: 70 + 90
d (q + 1) + q = 1 q the way you find easier in each pair. e 80 + 50 t,.: 170 + 30 f 110 + 70 ~: 140 + 50
a (9 + 1) + 7 = b (8 + 5) + 5 = c (7 + 3) + 8 = m
e 5 + (7 + 3) = 1 5 9 + (1 + 7) = 8 + (5 + 5) = 7 + (3 + 8) =
f 10+0+7= 17
CHALLENGE
00 (4 + 6) + (7 + 3) = 20

O~en: making up six
more examples like m !STEPS 3b:2S!
those in 1. (1/3 a) 00
a 80 + 60 < 70 + qO
00 ~ Challenge rn 00 b qO + 40 = 70 + 60

Open: making up at
a (3 + 7) + 8 = 1 8 a (q + 1) + 7 = 1 7 a 8+5= 13 a 8+5 < 7+q c qO + 40 = 80 + 50
least 6 more sums in
q + (7 + 1) = 17
b (4 + 6) + 8 = 18 which 4 numbers are b q+4= 13 b 11+7 > 8+5 d 11 0 + 70 < 70 + qO
b (8 + 5) + 5 = 18 paired off to make 2
c (q + 1) + 8 = 1 8 c 7+6= 13 c 7+6 = q+4 e 80 + 50 < 170 + 30
8 + (5 + 5) = 18 tens and and a total of
d (6 + 4) + 7 = 17 20. (1/3 b,d) d 7+q= 16 d 13+6 = 14+5 f 11 0 + 70 < 140 + 50
c (7 + 3) + 8 = 1 8
e (5 + 5) + q = 1 q 7 + (3 + 8) = 18 e 11+7= 18 e 17+3 > 11 +7
f (7 + 3) + 5 = 1 5 f 14+5= lq f 11+7 > 7+6 ~
g 17 + 3 = 20 g q+4 < 13+6 Open: copying and
completing a chain of
h 13+6= lq h 14+5 < 17+3
additions separated
8+5 = q+4 by <, = or >.