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
64 + 10 = ______
66 − 10 = ______
47 + 20 = ______
65 − 10 = ______
43 − 10 = ______
8 × 10 = ______
9 × 10 = ______
58 + 20 = ______
7 × 10 = ______
63 − 10 = ______
87 − 10 = ______
85 + 10 = ______
6 × 10 = ______
37 + 20 = ______
11 + 20 = ______
14 + 20 = ______
57 + 20 = ______
68 + 20 = ______
48 + 20 = ______
21 + 20 = ______
