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
54 − 10 = ______
55 − 10 = ______
7 × 10 = ______
88 + 20 = ______
74 + 10 = ______
54 + 20 = ______
63 + 10 = ______
81 + 20 = ______
1 × 10 = ______
35 + 10 = ______
41 − 10 = ______
21 − 10 = ______
3 × 10 = ______
66 − 10 = ______
87 + 20 = ______
36 + 10 = ______
23 + 20 = ______
2 × 10 = ______
78 + 20 = ______
51 + 10 = ______
