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Самостоятельная работа по математике, 1 класс: Number sense, Addition and subtraction. 11 заданий с ответами и объяснениями. Темы: Number sense, Addition and subtraction, Place value, Comparison of numbers, Simple word problems, Patterns and sequences. Длительность — 55 мин.
Задания самостоятельной работы
Ниже — полный список заданий с правильными ответами и объяснениями. На занятии репетитор может скрыть ответы и открывать их после того, как ученик попробует ответить сам.
1
What is 47 + 26?
63
73
83
Объяснение: Add the tens and ones: 40 + 20 = 60, and 7 + 6 = 13. Then 60 + 13 = 73.
2
What is 135 + 24?
149
159
169
Объяснение: Add 20 to 135 to get 155, then add 4 more to get 159.
3
Which number is greater?
68
86
Both are equal
Объяснение: 86 is greater because it has 8 tens, while 68 has 6 tens.
4
What number comes next in the pattern: 5, 10, 15, 20, __ ?
22
25
30
Объяснение: The pattern increases by 5 each time, so the next number is 25.
5
What is 90 - 37?
53
63
67
Объяснение: Subtract 30 first: 90 - 30 = 60, then subtract 7 more: 60 - 7 = 53.
6
Which number has 4 hundreds, 2 tens, and 7 ones?
427
472
247
Объяснение: 4 hundreds = 400, 2 tens = 20, and 7 ones = 7. Together they make 427.
7
A box has 18 apples. 6 apples are taken away. How many apples are left?
12
13
14
Объяснение: Take away 6 from 18: 18 - 6 = 12.
8
What is 208 + 31?
229
239
249
Объяснение: Add 30 to 208 to get 238, then add 1 more to get 239.
9
Which set shows the numbers in order from smallest to largest?
34, 43, 53
43, 34, 53
53, 43, 34
Объяснение: 34 is the smallest, then 43, then 53.
10
Mia has 25 stickers. She gets 15 more stickers. How many stickers does she have now?
30
40
50
Объяснение: Add 25 and 15: 20 + 10 = 30, and 5 + 5 = 10. Then 30 + 10 = 40.
11
What is 300 + 40 + 6?
346
340
306
Объяснение: Combine the hundreds, tens, and ones: 300 + 40 + 6 = 346.
