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 = ______
49 + 10 = ______
11 + 10 = ______
8 × 10 = ______
14 + 10 = ______
83 − 10 = ______
25 − 10 = ______
27 − 10 = ______
54 + 20 = ______
51 − 10 = ______
5 × 10 = ______
85 + 10 = ______
3 × 10 = ______
45 − 10 = ______
7 × 10 = ______
6 × 10 = ______
40 + 10 = ______
55 − 10 = ______
92 − 10 = ______
42 − 10 = ______
