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 + 20 = ______
72 − 10 = ______
22 − 10 = ______
58 + 10 = ______
7 × 10 = ______
32 + 20 = ______
14 + 10 = ______
73 + 10 = ______
1 × 10 = ______
8 × 10 = ______
19 + 20 = ______
23 − 10 = ______
89 + 10 = ______
89 − 10 = ______
43 − 10 = ______
26 + 20 = ______
54 + 10 = ______
40 + 20 = ______
36 + 10 = ______
52 + 20 = ______
