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
51 − 10 = ______
63 − 10 = ______
88 − 10 = ______
67 + 10 = ______
66 + 10 = ______
26 + 10 = ______
6 × 10 = ______
48 + 20 = ______
8 × 10 = ______
2 × 10 = ______
5 × 10 = ______
46 + 10 = ______
47 + 20 = ______
55 + 20 = ______
31 + 10 = ______
94 − 10 = ______
25 − 10 = ______
74 + 20 = ______
48 + 10 = ______
15 + 10 = ______
