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
61 + 10 = ______
9 × 10 = ______
57 − 10 = ______
74 + 20 = ______
87 + 20 = ______
22 + 10 = ______
2 × 10 = ______
6 × 10 = ______
59 + 10 = ______
49 + 20 = ______
44 − 10 = ______
84 + 10 = ______
40 + 10 = ______
8 × 10 = ______
67 + 20 = ______
36 + 20 = ______
4 × 10 = ______
27 + 20 = ______
70 − 10 = ______
46 − 10 = ______
