1. Whole Numbers
iGCSE (2021 Edition)
1.06 Check reasonableness of calculations
Interactive practice questions
Which of the following is closest to the sum $23+42+34$23+42+34?
$10$10
A
$100$100
B
$1000$1000
C
Easy
< 1min
Which of the following is closest to the sum $97+98+89$97+98+89?
Easy
< 1min
Which of the following is closest to $99+98-87$99+98−87?
Easy
< 1min
Is the following sum close to $1000$1000?
$948+827+18$948+827+18
Easy
< 1min
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