Interactive practice questions
Evaluate $5+7$5+7
Easy
< 1min
Evaluate $8+4$8+4
Easy
< 1min
Evaluate $10-1$10−1
Easy
< 1min
Evaluate $9-4$9−4
Easy
< 1min
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Evaluate $5+7$5+7
Evaluate $8+4$8+4
Evaluate $10-1$10−1
Evaluate $9-4$9−4