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
49 + 10 = ______
20 + 10 = ______
8 × 10 = ______
82 − 10 = ______
9 × 10 = ______
50 + 10 = ______
28 + 10 = ______
79 + 20 = ______
78 − 10 = ______
40 + 20 = ______
7 × 10 = ______
55 − 10 = ______
3 × 10 = ______
88 − 10 = ______
58 − 10 = ______
58 + 10 = ______
14 + 20 = ______
60 + 20 = ______
49 + 20 = ______
36 + 10 = ______
