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 = ______
47 + 20 = ______
72 + 10 = ______
6 × 10 = ______
37 − 10 = ______
20 + 10 = ______
45 + 20 = ______
63 − 10 = ______
77 − 10 = ______
21 − 10 = ______
85 + 20 = ______
40 − 10 = ______
52 + 20 = ______
12 + 10 = ______
99 − 10 = ______
41 − 10 = ______
3 × 10 = ______
29 + 20 = ______
68 − 10 = ______
9 × 10 = ______
