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 = ______
55 + 20 = ______
48 + 10 = ______
64 + 10 = ______
75 + 10 = ______
26 − 10 = ______
82 − 10 = ______
2 × 10 = ______
43 + 10 = ______
79 + 10 = ______
3 × 10 = ______
85 + 20 = ______
70 − 10 = ______
15 + 20 = ______
6 × 10 = ______
4 × 10 = ______
14 + 10 = ______
37 + 20 = ______
32 + 20 = ______
97 − 10 = ______
