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
4 × 10 = ______
67 + 10 = ______
71 − 10 = ______
11 + 10 = ______
84 + 10 = ______
72 + 10 = ______
22 + 20 = ______
52 − 10 = ______
7 × 10 = ______
53 + 10 = ______
83 − 10 = ______
1 × 10 = ______
87 − 10 = ______
66 − 10 = ______
2 × 10 = ______
59 + 20 = ______
14 + 20 = ______
20 + 10 = ______
9 × 10 = ______
39 + 20 = ______
