Froggy Jumps Mental Math ChallengeVersion en ligne To train mental math and solve exersices faster. Solve using little time. par Elvira Perdomo Alarcón 1 How many is 32 plus 24 a 58 b 65 c 56 2 Multiply 6 X 8 a 36 b 48 c 54 3 How many is 76 minus 35 a 41 b 35 c 42 4 Multiply 8 X 9 a 70 b 72 c 74 5 What is seven to the third power a 343 b 526 c 21 6 Add 4+3+8 a 12 b 18 c 15 7 How many is 12 + 10 + 14 a 34 b 36 c 42 8 How many is 68 minus 45 a 42 b 23 c 33 9 54 divided in 6 a 7 b 8 c 9 10 How many is 3 X 3 X 3 a 18 b 27 c 9 11 Fact family: 8 X 3 = 24 So 24 divided 3 is equal to ? a 6 b 3 c 8 12 Multiply 12 X 3 a 36 b 24 c 60 13 Add 12 plus 10 plus 18 a 38 b 48 c 40 14 Subtract 72 minus 9 a 63 b 69 c 68 15 Add 7 + 4 + 6 a 18 b 17 c 19 16 Twenty four minus ten a 20 b 10 c 14 17 Fifteen plus five a 12 b 18 c 20 18 How many is 6 X 4 a 24 b 34 c 12 19 Fact Family 7 X 6 = 42 So 42 diveded 7 is equl to ? a 7 b 5 c 6 20 Add 20 + 10+ 35+ 12 a 57 b 67 c 77
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