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
26 + 20 = ______
74 − 10 = ______
23 − 10 = ______
82 + 10 = ______
60 − 10 = ______
18 + 10 = ______
59 + 10 = ______
33 + 10 = ______
51 + 10 = ______
33 − 10 = ______
83 + 10 = ______
88 + 20 = ______
24 + 10 = ______
61 − 10 = ______
55 + 10 = ______
9 × 10 = ______
27 + 20 = ______
48 + 10 = ______
80 − 10 = ______
40 − 10 = ______
