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
16 + 20 = ______
11 + 20 = ______
82 − 10 = ______
1 × 10 = ______
12 + 10 = ______
33 + 20 = ______
50 + 10 = ______
94 − 10 = ______
11 + 10 = ______
9 × 10 = ______
87 − 10 = ______
6 × 10 = ______
25 + 10 = ______
73 − 10 = ______
38 + 20 = ______
56 + 10 = ______
4 × 10 = ______
13 + 10 = ______
31 + 10 = ______
5 × 10 = ______
