Fun with MATH 5B（PDF：272KB）

Fun with MATH 5B 正誤表
ページ
箇所
表紙裏第 9 単元 ④
タイトル
15
10 行目
6
12
女の子の吹出し
15
10～11 行目
15
B
② ○
22
④
25
②
28
☆2
34
35
37
37
37
38
41
41
41
42
女の子のノート
8～9 行目
１キー発問
☆2 表
A 図
１ ○
右側註 2 行目
② 2 行目
小見出し
みらいの吹出し
つばさの発言
あおいの発言
② 5 行目
44
１
44
②
32
51
112
B
③ ○
3 行目
B
☆18 ○
3 行目
誤
Problems using area
of
～ from base BC to vertex A
When the height of triangle doubles or triples, the area
doubles or triples as well.
How does the area change when the base is doubled or
tripled?
～ from vertex A to base BC
My idea was to use two same trapezoids and make
a parallelogram.
When the height of triangle doubles, triples, and so on
the area doubles, triples, and so on.
How does the area change when the base is doubled,
tripled, and so on?
You took 4 tomatoes from a box and weighed them.
You took 4 tomatoes from a box and weighed each of them.
Figure out various distances by first finding the length
of your own stride.
You measure 6 dictionaries and find that they weigh
10.8 kg.
Find the length of your own stride and figure out various
distances.
You measure the weight of 6 dictionaries and find that
they weigh 10.8 kg.
The fewer tatami mats per child, the more ～
person
Compare the number of residents per km2.
people
West Elementary
down （2 箇所）
My idea was to use two and make a parallelogram.
West elementary
Round off
rounding off
Round up and round off to ～
Working in order starting with small quantities
～ the highest number of students interested.
～ have 20 more students interested than ～
～ are than slots available …
In the weaving workshop?
The track club has 15 available slots.
The number of interested students is 0.8 times the
number of slots.
An item that was 1400 yen last year now costs 1.05
times last year’s price.
Round to the
1
100
column.
1
☆2 8～9 行目
Round the answer to the
60
67
67
☆5
7 行目
A
１ ○
Ice cream is about 60％ water.
The distance around a circle ～
Discover how the circumference is ～
69
吹出し
Find the answer to the
10～11 行目
76
10 行目
83
女の子の吹出し
83
下2～1 行目
84
３
85
女の子の吹出し
85
男の子の吹出し
90
90
99
99
101
104
112
☆3
☆6
4 行目
C
○
2 行目
吹出し
下 2 行目
☆20 2～3 行目
10
1
100
down
down
numbers
interested students
interested students
available slots
How about in
The track and field club has 15 available slots.
The number of interested students is 0.8 times the
number of available slots.
An item was 1400 yen last year. In this year, the item
costs 1.05 times last year’s price.
Round to the
60
71
正
column.
1
s place.
100
Round the answer to the
1
s place.
10
About 60％ of ice cream is water.
length
that
column.
Find the answer to the
1
s place.
100
As the diameter of a circle doubles and triples, the As the diameter of a circle doubles, triples, and so on the
circumference doubles and triples too.
circumference doubles, triples, and so on too.
Vertical sides like figure AB on the right ～
下線部を削除
As ○ doubles, triples, and so on △ doubles, triples,
As ○ doubles and triples, △ doubles and triples too.
and so on too.
Since the area doubles and triples as the width doubles Since the area doubles, triples, and so on as the width
and triples, the width ～
doubles, triples, and so on the width ～
You buy 1 100-yen apple and put it in a 50-yen basket.
You buy some 100-yen apples and put them in a 50-yen basket.
～ because as the number of steps doubles and triples,
the height doubles and triples too.
～ because as the number of marbles the older sister
has doubles and triples, the number of ～
A and ○
B?
What numbers belong at ○
～ because as the number of steps doubles, triples, and
so on the height doubles, triples, and so on too.
～ because as the number of marbles the older sister
has doubles, triples, and so on the number of ～
correspond to
Which of the following have an answer that is greater than 240?
larger
If you press the 150% key, ～
～ more than three times larger of the original length?
It’s larger by the perimeter of ～
Use rounding up or rounding off to estimate ～
It was originally discounted to 80％ off the regular
button
longer
longer
down
It was originally discounted to 80％ of the regular price,
1
price, but then discounted by another 25％.
1
☆23 3 行目
Round to the
115
115
115
左段 10 行目
左段 13 行目
右段 14 行目
三角形変形マシーン
部品②
8×((5＋3))÷2－8×3÷2＝20
(13＋16＋15＋13＋17＋14＋17))÷7＝15
問題番号☆1 の位置
下線部を削除
下線部を削除
1 行上へ
Insert at ①
in
117
10
column.
but then there is an additional 25％ off.
112
Round to the
2
1
s place.
10

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