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
6 × 10 = ______
32 + 10 = ______
20 + 20 = ______
81 + 10 = ______
64 + 20 = ______
9 × 10 = ______
79 + 10 = ______
55 + 10 = ______
7 × 10 = ______
31 + 20 = ______
45 − 10 = ______
98 − 10 = ______
81 − 10 = ______
85 − 10 = ______
69 − 10 = ______
46 + 20 = ______
44 − 10 = ______
36 + 10 = ______
18 + 10 = ______
19 + 10 = ______
