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
7 × 10 = ______
32 − 10 = ______
19 + 20 = ______
6 × 10 = ______
66 + 20 = ______
53 + 10 = ______
28 − 10 = ______
74 + 10 = ______
50 − 10 = ______
27 + 20 = ______
79 + 20 = ______
85 + 10 = ______
80 + 10 = ______
40 + 10 = ______
37 − 10 = ______
3 × 10 = ______
23 + 10 = ______
1 × 10 = ______
57 − 10 = ______
70 + 20 = ______
