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
7 × 10 = ______
22 + 10 = ______
77 − 10 = ______
26 + 10 = ______
91 − 10 = ______
68 + 20 = ______
44 + 10 = ______
37 + 10 = ______
66 + 10 = ______
2 × 10 = ______
77 + 10 = ______
32 − 10 = ______
82 − 10 = ______
81 + 20 = ______
80 − 10 = ______
5 × 10 = ______
9 × 10 = ______
42 + 10 = ______
40 + 20 = ______
93 − 10 = ______
