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
23 + 20 = ______
18 + 10 = ______
59 − 10 = ______
6 × 10 = ______
29 + 20 = ______
60 − 10 = ______
87 + 20 = ______
41 + 10 = ______
3 × 10 = ______
62 + 20 = ______
83 − 10 = ______
92 − 10 = ______
9 × 10 = ______
88 + 10 = ______
47 − 10 = ______
8 × 10 = ______
66 + 10 = ______
81 + 10 = ______
85 + 20 = ______
82 − 10 = ______
