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 = ______
7 × 10 = ______
71 + 20 = ______
44 − 10 = ______
6 × 10 = ______
36 + 10 = ______
3 × 10 = ______
75 − 10 = ______
19 + 20 = ______
45 − 10 = ______
5 × 10 = ______
60 + 20 = ______
63 + 10 = ______
78 + 10 = ______
9 × 10 = ______
25 + 20 = ______
8 × 10 = ______
69 − 10 = ______
1 × 10 = ______
80 + 20 = ______
