知識與能力訓練四年級英語上教版
注：當前書本只展示部分頁碼答案，查看完整答案請下載作業精靈APP。練習冊知識與能力訓練四年級英語上教版答案主要是用來給同學們做完題方便對答案用的，請勿直接抄襲。
在“數學文化周”中，同學們參加了“我是清點小能手”活動。快來看看誰清點得又快又準確吧！
①I have
four
toy cars. You have
five
toy cars. How many toy cars do we have?
We have
nine
toy cars.
Four
plus
five
equals
nine
.
4
+
5
=
9
.
② I have
two
teddy bears. You have
four teddy bears
.
How many
teddy bears do we have?
We
have
six teddy bears.
Two
plus
four
equals
six
.
2
+
4
=
6
.
答案：①B: four, five; G: nine; Four plus five equals nine.; 4+5=9
解析：根據示例，先確定總數，再分兩部分，用加法算式表示。假設共有9輛玩具車，我有4輛，你有5輛，算式4+5=9。
②B: two, four teddy bears, How many; G: have; Two plus four equals six.; 2+4=6
解析：同理，假設共有6個泰迪熊，我有2個，你有4個，算式2+4=6。（答案不唯一，合理即可）
活動中，同學們需根據“已有物品清單”及“所需物品清單”進行核對，統計出還需要購買的物品及數量。快來一起算算吧！
① We need
twelve
toy cars. We have
nine
toy cars.
Twelve
minus
nine
equals
three
. We need
three
toy cars.
② We need
eight teddy bears
. We have
six teddy bears
.
Eight
minus
six
equals
two
. We need
two teddy bears
.
答案：（因“已有物品清單”和“所需物品清單”具體數量未明確，根據示例格式，假設數據如下）
① We need twelve toy cars. We have nine toy cars. Twelve minus nine equals three. We need three toy cars.
② We need eight teddy bears. We have six teddy bears. Eight minus six equals two. We need two teddy bears.
解析：根據示例，用所需數量減去已有數量得到需要購買的數量，此處假設所需玩具車12輛，已有9輛，需3輛；所需泰迪熊8個，已有6個，需2個。（實際需根據具體清單數據計算）
