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
5 × 10 = ______
13 + 20 = ______
6 × 10 = ______
88 + 20 = ______
44 + 20 = ______
61 + 10 = ______
3 × 10 = ______
1 × 10 = ______
31 + 10 = ______
8 × 10 = ______
58 − 10 = ______
30 + 10 = ______
82 + 10 = ______
24 + 20 = ______
67 + 20 = ______
81 + 20 = ______
66 + 10 = ______
52 − 10 = ______
86 − 10 = ______
56 − 10 = ______
