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
82 + 10 = ______
50 + 20 = ______
17 + 20 = ______
44 − 10 = ______
67 + 20 = ______
7 × 10 = ______
5 × 10 = ______
35 + 10 = ______
13 + 10 = ______
26 + 10 = ______
22 + 20 = ______
34 + 10 = ______
62 − 10 = ______
6 × 10 = ______
95 − 10 = ______
2 × 10 = ______
25 − 10 = ______
88 + 10 = ______
79 + 10 = ______
26 − 10 = ______
