Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
58 + 20 = ______
53 + 10 = ______
91 − 10 = ______
18 + 20 = ______
6 × 10 = ______
8 × 10 = ______
83 − 10 = ______
62 + 20 = ______
15 + 10 = ______
60 − 10 = ______
45 + 10 = ______
5 × 10 = ______
56 + 20 = ______
59 − 10 = ______
52 + 20 = ______
9 × 10 = ______
35 + 20 = ______
7 × 10 = ______
46 − 10 = ______
67 − 10 = ______
