6 - JUMP Math

Subtr cting with
Number Line
The frog t kes 2 le ps b ck. Where does it end up?
0
22
1
2
3
4
5−2=
3
23
24
25
5
6
0
1
2
3
4
5
6
33
34
5
6
3−2=
26
27
28
29
30
31
32
31 − 2 =
Tr ce 3 le ps b ck.
Subtr ct 3.
35
1
2
3
4
4−3=
1
36
37
38
5
6
0
1
2
3
4
6−3=
39
40
41
42
43
44
45
46
47
93
94
95
96
97
98
42 − 3 =
86
87
88
89
90
91
92
94 − 3 =
88
Number Sense 2-33
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
0
The frog st rts t the ﬁrst number.
Dr w
dot where the frog st rts.
0
2
1
3
4
5
6
7
0
1
2
3
4
5
6
7
6−2=4
7−3=4
21 22 23 24 25 26 27 28
35 36 37 38 39 40 41 42
26 − 4 = 22
42 − 5 = 37
24 25 26 27 28 29 30 31
29 30 31 32 33 34 35 36
30 − 3 = 27
33 − 4 = 29
The frog jumps b ck the second number of le ps.
Dr w the frog’s le ps.
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
5
6
7
8
9 10 11 12
5
6
7
8
9 10 11 12
10 − 4 = 6
12 − 3 = 9
17 18 19 20 21 22 23 24
21 22 23 24 25 26 27 28
23 − 4 = 19
25 − 4 = 21
Number Sense 2-33
89
number line to subtr ct.
Use
0
0
1
2
3
4
5−3=
2
1
2
3
5
0
6
1
2
3
4
5
6
6−2=
4
5
6
7
8
9
10
11
12
7
8
9
10
11
12
60
61
62
63
64
65
53
54
55
56
57
58
40
41
42
43
44
11 − 5 =
0
1
2
3
4
5
6
12 − 3 =
53
54
55
56
57
58
59
46
47
48
49
50
51
52
57 − 5 =
M ke your own.
32
33
34
35
36
37
−
90
38
39
=
Number Sense 2-33
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
63 − 6 =
Dr w the le ps from the second dot to the ﬁrst dot.
How m ny le ps did you dr w? Fill in the bl nk.
0
1 2 3 4
7−
0
1 2 3 4
8−
47
48
49
5 6 7
8
0 1 2 3
4 5 6
5−
=2
=3
5 6 7
8
20 21 22 23 24 25 26
24 −
=3
50
51
52
53
56 −
54
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
40 −
76
77
78
80
66 −
81
57
58
59
number line.
= 36
79
56
60 61 62 63 64 65 66
41
85 −
Number Sense 2-33
55
= 20
= 48
Find the missing number by using
35 36 37 38 39 40
7 8
82
83
84
85
= 63
86
87
88
= 76
91
number line to dd or subtr ct.
Use
0
1
2
3
4
5
0
6
1
1+3=
0
1
2
2
3
4
5
6
5−2=
3
4
5
6
7
8
9
10
6
7
8
9
10
6
7
8
9
10
7
8
9
10
7
8
9
10
3+5=
0
1
2
3
4
5
10 − 4 =
0
1
2
3
4
5
0
1
2
3
4
5
6
=4+4
0
1
2
3
4
5
6
=9−7
92
Number Sense 2-33
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
=9−6
Subtr cting by Counting B ckw rds
Subtr ct by counting b ck.
8
7
6
5
4
3
8−5=
6
6−4=
28
28 − 3 =
32
32 − 5 =
3
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
Now dr w the bl nks then subtr ct.
21
21 − 2 =
30
30 − 5 =
43
43 − 4 =
Now keep tr ck on your ﬁngers.
28 − 4 =
Number Sense 2-34
32 − 3 =
41 − 2 =
93
Comp ring Number Sentences
Fill in the bl nks.
4−
0
1
2
=1
3
1+
4
5−
5
0
6
1
=4
1
2
3
3
3+
5−4=
0
2
=3
4
5
6
5
6
=5
6−2=
4
5
6
0
1
2
+4=5
3
4
+2=6
9−5=
0
1
2
3
4
5
6
7
8
9
10
+5=9
0
0
94
1
1
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
9
9
9
10
5+
=9
9−
=5
10
10
Number Sense 2-35
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
0
Write 4 number sentences for e ch picture.
4+3=7
3+4=7
+
7−3=4
4
2
4
+
6
6
6
6
7−4=3
−
4
−
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
2
Number Sense 2-35
2
2
4
+
+
−
−
95
Subtr cting by Counting On
Subtr ct by counting forw rds.
Wh t is 31 − 27?
28
27 + 4 = 31
6+
29
so
30
31
31 − 27 = 4
= 8 so 8 − 6 =
36 +
= 38 so 38 − 36 =
9+
= 12 so 12 − 9 =
39 +
= 42 so 42 − 39 =
14 +
= 19 so 19 − 14 =
44 +
= 49 so 49 − 44 =
24 − 18 =
52 − 49 =
78 − 77 =
89 − 86 =
92 − 88 =
93 − 89 =
94 − 90 =
95 − 91 =
M ke up 3 subtr ction questions nd solve them by
counting forw rds.
96
Number Sense 2-36
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
27
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
Subtr ct by counting forw rds or b ckw rds.
47 − 4 =
39 − 36 =
42 − 38 =
31 − 6 =
32 − 25 =
33 − 29 =
33 − 4 =
45 − 7 =
41 − 39 =
21 − 15 =
21 − 3 =
46 − 8 =
42 − 36 =
42 − 5 =
37 − 35 =
24 − 3 =
24 − 19 =
37 − 4 =
47 − 5 =
47 − 2 =
47 − 43 =
Did you use counting forw rds or b ckw rds for the
l st question? Expl in your choice.
M ke up 3 subtr ction questions nd solve them by
counting b ckw rds.
Number Sense 2-36
97
Subtr cting in Word Problems
Subtr ct by counting forw rds.
Write sentence to describe how m ny more.
S r h s 12 m rbles.
Ron h s 8 m rbles.
S r h s 4 more m rbles th n Ron.
S r h s 7 pples.
S r h s 9 or nges.
COPYRIGHT © 2009 JUMP MATH: NOT TO BE COPIED
Ron h s 8 cr yons.
Ron h s 5 m rkers.
S r h s 6 cr yons.
Ron h s 10 cr yons.
98
Number Sense 2-37
Circle the correct w y to nswer the question.
Write the nswer.
Isobel h d ﬁve b n n s.
She te three b n n s.
5+3
How m ny b n n s re left?
There re eight big pencils.
There re ﬁve little pencils.
5–3
2
8+5
8–5
How m ny pencils ltogether?
There re eight big pencils.
There re ﬁve little pencils.
8+5
8–5
How m ny more big pencils th n little pencils?
There re fourteen red b lloons.
There re three blue b lloons.
14 + 3
14 – 3
How m ny more red b lloons th n blue b llons?
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There re fourteen red b lloons.
There re three blue b lloons.
14 + 3
14 – 3
How m ny b lloons in tot l?
Soni h s eleven cr yons.
Seven of them re red.
11 + 7
11 – 7
How m ny re not red?
Number Sense 2-37
99

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