
Estimating and Checking Two-Digit Sums Fun!
Authored by Anthony Clark
English
2nd Grade
CCSS covered

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lily has 23 apples and her friend gives her 15 more. How many apples does Lily have now? Estimate the sum first.
35
40
38
28
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tom has 34 marbles and he buys 26 more. How many marbles does he have in total? Check if your answer is reasonable by estimating.
60
70
50
80
Tags
CCSS.2.NBT.B.6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A bakery sold 45 cupcakes in the morning and 28 in the afternoon. How many cupcakes did they sell altogether? Estimate the total first.
60
73
80
50
Tags
CCSS.1.NBT.C.4
CCSS.2.NBT.B.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sarah read 12 pages of her book on Monday and 29 pages on Tuesday. How many pages did she read in total? Check if your answer makes sense.
41 pages
25 pages
50 pages
30 pages
Tags
CCSS.2.OA.A.1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a toy store, there are 56 toy cars and 34 toy trucks. How many toy vehicles are there in total? Estimate the sum before calculating.
80
90
100
70
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A farmer has 47 chickens and buys 22 more. How many chickens does he have now? Check if your answer is reasonable by rounding.
69
82
58
75
Tags
CCSS.1.NBT.C.4
CCSS.2.NBT.B.5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Emma collected 38 stickers and her brother gave her 14 more. How many stickers does she have now? Estimate the total first.
60
52
48
40
Tags
CCSS.1.NBT.C.4
CCSS.2.NBT.B.5
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