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 = ______
48 + 10 = ______
78 − 10 = ______
43 + 10 = ______
8 × 10 = ______
66 + 10 = ______
3 × 10 = ______
60 + 20 = ______
50 − 10 = ______
61 + 20 = ______
49 + 20 = ______
6 × 10 = ______
74 + 20 = ______
79 − 10 = ______
57 − 10 = ______
21 − 10 = ______
35 − 10 = ______
63 + 20 = ______
60 − 10 = ______
47 + 20 = ______
