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
5 × 10 = ______
33 + 20 = ______
6 × 10 = ______
46 − 10 = ______
40 + 20 = ______
31 − 10 = ______
70 − 10 = ______
57 + 10 = ______
43 + 20 = ______
55 + 20 = ______
59 + 10 = ______
88 − 10 = ______
8 × 10 = ______
32 + 10 = ______
37 + 20 = ______
28 + 20 = ______
69 + 20 = ______
27 − 10 = ______
64 − 10 = ______
63 + 10 = ______
